WHY WE HIT SHARE: THE SCIENCE OF VIRAL CAMPAIGNS

For brands, there’s no higher endorsement than a consumer choosing to share their campaign with friends, family or followers. While paid media guarantees reach, organic reposts give campaigns an authenticity and cultural weight that money can’t buy. But why do some activations spark shares while others barely make it past the brand’s own channels? The answer lies in psychology.

Why People Share

Sharing content isn’t necessarily about the message itself — it’s about what the act of sharing communicates about the individual. Some of the most powerful motivators include:

  1. Identity & Self-expression:
    • Consumers share content that reflects their personality, values or humour. A witty snack campaign or a sustainability-driven drinks launch gives people the chance to align themselves with a message publicly.
  2. Social Currency:
    • Posting a campaign that feels clever, timely or “ahead of the curve” makes the sharer look informed. In the fast-paced consumer landscape, this can be as simple as being the first to spotlight a new flavour or limited-edition product drop.
  3. Emotion:
    • Research shows that high-arousal emotions — joy, awe, anger, surprise — drive sharing behaviour. Whether it’s laughter from a playful campaign or pride from a purpose-led initiative, content that makes people feel something is more likely to be reposted.
  4. Community & Belonging:
    • Campaigns that tap into wider cultural moments or shared causes encourage people to show solidarity. Think of seasonal rituals like the annual Christmas advert buzz, or brands creating moments around sustainability and health.

Shareable Campaigns in Action

Recent years have offered strong examples of shareability in practice:

  1. The ALS Ice Bucket Challenge: Participatory, emotional, and rooted in a cause, it remains one of the most shared campaigns in history.
  2. IKEA’s Pride Love Seats: Colourful, values-driven, and inherently visual, making it ideal for social sharing.
  3. Duolingo on TikTok: Tapping humour and internet culture with their owl mascot has made them one of the most consistently shared brands on social.

Each of these campaigns gave people more than a product to look at — they offered something to join in with, identify with or laugh at together.

Tips for Creating Shareable Campaigns

For PR and marketing teams, making a campaign “shareable” shouldn’t be an afterthought. Instead, it should be baked into the strategy from the start. Practical considerations include:

  • Keep messaging clear and snackable.
  • Lead with emotion rather than functional benefits.
  • Build in participation through polls, challenges or hashtags.
  • Stay authentic — forced attempts to chase trends rarely land well.

Turning Campaigns into Stories People Want to Tell

The most successful shareable campaigns are rooted in human behaviour. People hit repost not to do brands a favour, but because the content gives them something — whether that’s entertainment, identity or connection.

For consumer brands, the opportunity lies in creating work that doesn’t just speak at audiences but gives them something they want to make part of their own story.

Want to learn more about what’s trending in content creation? Read our blog on The Rise of Micro-Influencers.

Looking for a consumer marketing agency to help your brand stand out? Visit our Contact page — we’d love to chat!

Sources

Blog Cover Image: Urupong/istockphoto.com

https://www.researchgate.net/publication/345698319_Emotion_and_Virality_What_Makes_Online_Content_Go_Viral

https://www.als.org/ibc

https://www.thecut.com/2021/06/ikea-pride-love-seats.html

https://www.milkkarten.net/p/yes-duolingos-viral-tiktoks-lead