Behaviour-first design: what it is and why it changes every product decision

Most digital projects start with a message. The brand wants to say something. Explain product benefits. Launch a campaign. Build an app that presents all that information cleanly. Then hope people do something with it.

Behavior-first design flips that. The question is not: what do we want to communicate? The question is: what do we want people to do? And from that, every design decision follows.

At Livewall, this is how we've worked for years. We build gamified activations, loyalty programmes, and digital products for brands like HEMA, Decathlon, and McDonald's. And the pattern holds: the projects that work start with behaviour. The ones that disappoint start with communication.

What behaviour-first design actually means

The principle is straightforward. Before you design a single pixel or write a single word, you answer three questions:

1. What must the user do? Not feel, not think. Do. Purchase, return, share something, fill in a form, invite a friend.
2. What is stopping them from doing it right now? Is the barrier too high? Is motivation missing? Is there no trigger?
3. What design lowers that barrier or increases that motivation?

This sounds like good UX thinking. But it goes further. Behavior-first design shapes not just the interface, but the entire product structure. Which mechanics you choose. How you build reward systems. When you surface content. What you leave out.

A loyalty programme that simply counts points is communicated behaviour. A loyalty programme where you return daily because you are one level away from a reward is behavior-first design. The difference in repeat participation rates is not marginal. It is structural.

How most projects actually start

In practice, a brief almost always opens with communication objectives. 'We want to increase brand awareness.' 'We want to show how sustainable we are.' 'We want to introduce the new collection.'

Those are valid ambitions. But they describe what the brand wants to achieve inside people's heads, not in their behaviour. And that is a fundamental difference.

When you build a digital product around brand goals, you get a product that tells. When you build around behaviour goals, you get a product that moves. One that triggers an action. One that brings people back.

The Decathlon loyalty game is a clear example. The central question was not 'how do we show members what Decathlon has to offer', but 'how do we get members to register their sports behaviour and visit stores'. Every design decision followed from that behaviour goal. The result was an activation that actually got members moving, literally and commercially.

The five principles we apply at Livewall every time

1. Name the exact behaviour before the brief goes live Not 'more engagement', but 'users who return every week and invite a friend'. Specificity forces honesty about what you actually want to achieve.

2. Design the next step, not the full story Users do not need a complete brand experience. They need one clear next step. What is that step? Design around it.

3. Remove friction without mercy Every extra click, every required field, every unnecessary intermediate step is a reason to drop off. Behaviour-first design is also about constantly identifying and eliminating barriers.

4. Build reward systems that steer behaviour Rewards must align with the behaviour you want to reinforce. A discount after purchase rewards the purchase. Points for daily use reward return behaviour. The difference in long-term retention is significant.

5. Measure behaviour, not feeling Customer satisfaction scores tell you what people thought. Behaviour data tells you what people did. Use both, but let behaviour data drive your design decisions.

These principles sound obvious. But they require discipline, because the pull to fall back on 'we also need to land our message' is always present.

Where behaviour-first design delivers the most value

Not every project calls for this approach in its purest form. An informational website for a B2B service has different priorities than a consumer loyalty platform.

But there are situations where behaviour-first design makes the decisive difference:

• Loyalty programmes where return behaviour determines success
• Onboarding flows where the goal is getting new users to complete their first valuable action
• Campaigns with a participation goal, such as contests, challenges, or voting mechanics
• Preboarding and internal tools where behaviour change among employees is the core objective
• Gamified activations where the play behaviour itself is the brand experience

For Sportvisunie we built a community platform where the core behaviour, knowledge sharing, would not emerge on its own. We designed every part of the platform structure around a single question: how do you make it as easy and satisfying as possible to share knowledge? The result was an active community rather than a one-directional information channel.

The KLM scalable growth case shows a different angle: behaviour-first thinking applied at the production level. By asking what campaign managers needed to do faster and more consistently, we built an AI-driven workflow that changed how a global team actually works.