How Your Brand Should Act on Social Media

Brand Strategy · Part 4 of 8

(7 min read.)

A brand doesn't only speak on social media. It behaves there.

That's what sets social media apart from nearly every other brand touchpoint. A website explains who you are. A campaign expresses who you are. A logo identifies who you are. But social media drops the brand into a public, unpredictable space where people can respond, challenge, joke, complain, share, ignore, or pile on.

That changes everything.

Social media isn't just a publishing channel. It's a room. A feed. A comment section. A complaints desk. A customer service line. A testing ground. A cultural radar. A brand-building platform. And for some businesses, a sales channel too.

So the question isn't only what should we post?

The better question is: how should the brand act?

Your social media should serve a purpose

A brand's behaviour on social media shouldn't exist in isolation. It should fit into a wider brand strategy.

That sounds obvious, but it's where many brands stumble. They treat social media as a place where content simply has to happen: a post goes out because the calendar demands it, a trend gets copied because everyone else is doing it, a caption gets written because the graphic needs words.

But activity isn't strategy.

Before a brand decides how to behave, it needs to understand why it's there in the first place.

For some brands, the purpose is promotion: advertising specials, announcing offers, pushing launches, driving sales, filling tables, generating bookings. For others, it's brand building: expressing personality, growing familiarity, building cultural relevance, sharing a point of view. For many, it's a mix of both.

A restaurant might promote weekday specials while also becoming part of local culture. A bank might explain products while reinforcing simplicity and trust. A design studio might use LinkedIn to share thinking, Instagram to show work, and a newsletter to build deeper relationships over time.

The mistake isn't choosing one purpose forever. It's behaving without knowing what the purpose is.

Different platforms can have different jobs

Not every platform needs to do the same thing for a brand, and this matters especially for smaller businesses.

Large brands can build separate teams, formats, and strategies across Instagram, TikTok, YouTube, LinkedIn, Facebook, X, WhatsApp, and more, because they have the people and budget to support that complexity. Most small businesses don't.

For a smaller business, the smarter move is to start with the platform where the audience already is, and where the business can show up consistently. If your customers live on Facebook, Facebook matters more than TikTok. If you run a B2B service, LinkedIn likely carries more weight than Instagram. If your business runs on quick local enquiries, WhatsApp may matter more than a polished content calendar.

In South Africa, this matters a great deal. DataReportal reported that South Africa had 51.7 million internet users at the end of 2025, with internet penetration at 79.6 percent, and 29.1 million active social media user identities, equal to 44.9 percent of the population. Those numbers point to opportunity, not to an obligation to be everywhere. They tell a business the audience is online, and that the job is finding the right online space for the right purpose.

Platform strategy should be practical, not fashionable. TikTok might be brilliant for discovery and entertainment, but wrong as a first platform for a niche professional service. LinkedIn might be excellent for thought leadership and B2B trust, but irrelevant to where a local takeaway gets its orders. Instagram might build visual identity beautifully, while WhatsApp is where the actual conversion happens.

The platform should follow the audience, the business goal, and the brand's ability to act well there.

Social media is also a testing ground

For younger brands especially, social media is a place to experiment.

A new brand doesn't always know exactly what its audience will respond to. It might have a defined strategy, but the market still needs to react, and social media offers a fast way to test messages, formats, topics, humour, offers, and points of view.

This doesn't mean throwing things at the wall randomly. It means experimenting within a clear brand direction.

Which topics spark conversation? Which formats get saved or shared? Which offers drive action? Which tone feels natural? Which platform gives useful feedback?

Used well, social media becomes an alignment exercise between brand and audience, a way to discover what resonates.

But resonates is the key word.

Not all engagement is good engagement. A post can get attention for the wrong reasons. A brand can go viral and damage trust. A joke can travel further than intended and land with people who miss the context entirely. A trend can pull a brand into a conversation it was never equipped to handle.

The goal isn't simply to provoke a reaction. The goal is to learn what kind of reaction strengthens the brand.

Red Bull acts like the brand idea, not the product catalogue

Red Bull shows how social behaviour can be shaped by the idea behind a brand rather than the product itself.

It doesn't need every post to sell an energy drink. Instead, it behaves like a brand built around energy: extreme sports, speed, risk, stunts, music, athletes, and moments that feel almost impossible. The product sits quietly in the background, but the content world is far bigger than the can.

That's why Red Bull can post cyclists launching off mountains and snowboarders pulling impossible tricks. It isn't behaving like a catalogue. It's behaving like the emotional idea behind the product.

That's the lesson. A brand that only posts what it sells will run out of road quickly. A brand that understands what it stands for has a much wider world to draw from.

A coffee brand doesn't only need to post coffee, it can post rituals, mornings, focus, conversation, comfort, craft, community. A fitness brand doesn't only need to post classes, it can post discipline, recovery, confidence, small wins, identity. A design studio doesn't only need to post finished work, it can post thinking, process, critique, principles, experiments, lessons.

The strongest social content often lives around the brand idea, not only inside the product catalogue.

Nando's shows the value of timing and judgement

Nando's is a strong example because its social behaviour isn't only about tone. It's about timing.

The brand has built a role for itself as a cheeky, culturally switched-on commentator. When something happens in South African politics or public life, people often expect Nando's to weigh in. That's not just a tone of voice. It's a behavioural pattern, earned over time.

But this kind of behaviour demands judgement. A brand that comments on culture needs to understand the culture, what's funny, what's tired, what's sensitive, what's risky, and what's worth saying. It needs quick creative thinking, but also boundaries.

This is where many brands trip up. They see the attention Nando's gets and conclude the lesson is "be funny" or "jump on trends."

It isn't.

The real lesson is: know your role well enough to know when you belong in the conversation. For Nando's, topical humour fits because it's built that expectation deliberately. For a medical aid, a law firm, a school, or a financial services provider, the same behaviour might feel deeply out of place.

The mistake isn't being boring. The mistake is acting out of character.

Ryanair owns the awkward truth

Ryanair is one of the best modern examples of a brand that understands the tension at the heart of its own product.

People love cheap travel. They don't necessarily love the cramped seats, strict baggage rules, and no-frills experience that often comes with it. Ryanair's social media leans straight into that tension. The brand is self-aware, blunt, meme-literate, and entirely comfortable making fun of itself. It doesn't pretend to be a luxury airline, it behaves like a low-cost airline that knows exactly what it is.

That self-awareness is powerful. Many brands waste energy trying to hide the thing everyone already knows. Ryanair does the opposite: yes, the seats are tight, but you got to Barcelona for less than the price of dinner.

This doesn't work for every brand. It works because the behaviour matches the business model. The broader lesson is that social media rewards honesty when it's handled well. If the brand knows its truth, and the audience knows it too, there's often more power in acknowledging it than in pretending otherwise.

Apple reminds us that silence can be behaviour

Not every brand needs to be highly reactive.

Apple is a useful counter-example because its social behaviour is controlled, selective, and restrained. It doesn't need to jump into every trend, reply to every joke, or perform relatability in the comments, and that restraint is part of the brand.

This matters because there's constant pressure on brands to act more casual, more human, more entertaining, more reactive. Sometimes that's the right move. Sometimes it's completely wrong.

A premium brand may build more trust by being selective. A serious brand may build more authority by being useful rather than playful. A technical brand may build more credibility by explaining well instead of chasing trends.

Silence can be a behaviour. Restraint can be a behaviour. Choosing not to join the wrong conversation can be deeply on-brand.

The point isn't to post less. The point is to act deliberately.

The comments section is now part of the brand

Brand behaviour doesn't only happen in the main post, it happens in the comments.

For years, brands treated comments as an afterthought: the "real" content was the post, the campaign, the video, and comments were something to moderate or ignore. That's changed.

Vogue Business reported in 2026 that the comments section has become a more important space for brand participation, especially as brands look for ways to break through declining organic reach, with some brands now using comments to join existing conversations, build relatability, and show up where cultural relevance is already happening.

This changes what brand behaviour means. A brand isn't only judged by what it publishes, it's judged by how it replies, how quickly it responds, whether it sounds human, whether it handles criticism well, whether it can take a joke, and whether it knows when not to escalate.

For some brands, the comments section is now as important as the content itself. That doesn't mean every brand should start "popping off" in other people's comments, it means recognising that social media isn't a one-way announcement system. It's participatory. If a brand shows up, people expect it to behave like it's actually there.

Usefulness is a personality too

There's a temptation to think good social behaviour means being funny, reactive, or culturally loud. It doesn't.

For many brands, the most powerful behaviour is simply usefulness. A bank that explains a confusing process clearly is behaving well. An insurer that responds quickly during a stressful claim is behaving well. A software company sharing practical tips instead of vague thought leadership is behaving well. A local business that reliably answers opening-hour questions is behaving well.

This is especially true for service brands. If people come to your channels because they need help, clarity, or a quick answer, helpfulness isn't a secondary function. It's part of the personality.

A brand can't claim to be simple if its replies are confusing. It can't claim to be warm if it ignores frustrated customers. It can't claim to be premium if its comments are chaos. It can't claim to be human if every reply sounds automated.

Usefulness may not always go viral. But it builds trust.

A practical guide to platform behaviour

There's no universal rule for which platform every brand should use, but there are useful starting points.

LinkedIn tends to be strongest for B2B credibility, thought leadership, hiring, founder-led content, and professional trust-building, brands should bring substance here, without being stiff. 

Instagram suits visual storytelling, lifestyle, community, and brand world-building, not just reposted flyers.

TikTok runs on entertainment, discovery, and platform-native formats, brands need to behave like they understand the platform rather than uploading polished ads.

Facebook still matters for local communities, older audiences, groups, and practical updates, and shouldn't be dismissed for feeling unfashionable

YouTube suits deeper education, longer-form storytelling, and demonstrations.

WhatsApp isn't always thought of as social media in the traditional sense, but in markets like South Africa it can be central to customer communication, enquiries, and conversion. The behaviour here needs to be clear, useful, respectful, and never spammy.

The platform isn't just a place to post. It shapes the behaviour people expect.

How should a brand act?

A useful framework is to ask whether a brand's social behaviour is:

Purposeful, does the channel have a clear job, or are we posting because we feel we should? Consistent, does the behaviour match the brand personality across posts, replies, comments, and campaigns? Context-aware, does the brand understand the platform, audience, moment, and cultural setting? Useful, does the content or interaction give people something they actually value? Human, does the brand sound and respond like there are people behind it? Boundaried, does the brand know what it won't say, joke about, or involve itself in? Responsive, does the brand listen and engage where it makes sense, rather than only broadcasting? Aligned, does the behaviour support the wider business and brand strategy?

If the answer is no to most of these, the problem probably isn't the content calendar. It's the absence of a clear behavioural strategy.

What brands should avoid

A few mistakes come up again and again. Don't chase every trend, by the time most brands have approved the post, the moment has often passed. Don't copy another brand's personality, if your bank suddenly behaves like Duolingo, people will know something's gone wrong. Don't mistake attention for trust, a viral post isn't automatically a brand-building success. Don't sound human when selling and robotic when supporting; people notice the gap. Don't comment on cultural moments you don't understand, the internet is very good at detecting forced relevance. Don't let platform behaviour drift too far from brand strategy, a funny TikTok account isn't useful if it builds the wrong kind of brand. And don't treat criticism as an inconvenience, how a brand responds under pressure often says more than the original post ever could.

Most importantly: don't act out of character. Social media gives brands endless opportunities to be seen. That doesn't mean every opportunity should be taken.

Final thought

Social media reveals whether a brand personality is real.

It's easy to say a brand is warm, bold, helpful, funny, simple, premium, or culturally aware in a strategy document. It's harder to prove it in a comment section, during a complaint, in a trend, under pressure, or when the whole internet is reacting to the same thing.

That's why social media matters. It doesn't only show what the brand says. It shows how the brand behaves.

And behaviour is where personality becomes believable.

Author's note: This article reflects the opinions and interpretations of the authors, based on a conversation about brand personality and social media behaviour. The examples discussed are used to explore how brands can behave on social media in practice, rather than to present definitive facts about the brands mentioned.