People look sideways before they move forward.
No signal? They freeze.
Wrong signal? They follow straight into the wrong behaviour.
Think:


What to do
What you’ll notice
- “What does everyone else do?” emails
- Uptake lags until a leader demos first
- Wide scatter of choices, no clear majority
Why it happens
People wait for a visible majority before feeling safe to copy.
Select a strategy to reveal tactics:
What you’ll notice
- Team jokes about skipping safety checks
- “Everybody does it” used as a shield for poor practice
- New hires conform within days
Why it happens
The existing norm is visible and identity-defining, so it overrides policies.
Select a strategy to reveal tactics:
Why it matters
People don’t just copy others.
They want to fit in.
And that means reading the room.
Norms are the hidden rules of “how we do things around here.”
They tell us what’s expected, what’s acceptable, and what will get us side-eye at lunch.
It's the idea that humans have evolved to detect and follow group expectations. To fit in and maintain group harmony.
But norm signals can be:
Missing: so people stall, unsure what’s expected. They don’t want to do the “wrong” thing.
Misleading: people follow the crowd, even if it leads to bad outcomes.
And once a norm takes hold, it spreads fast.
Even if it’s the wrong one.
This is how bad habits become group habits.
“I guess this is just how we do things here.”
If you want behaviour to shift, shift what feels normal.
Make the right behaviour visible.
Make the risky one feel like the odd one out.
The science bit
Focus Theory of Normative Conduct
People litter less when they see others keeping it clean – and more when they see rubbish.
→ Highlight the behaviour you want copied.
Descriptive Norms vs Approval Cues
Energy feedback cut use in high-use homes but raised it in low-use ones – a smiley face fixed the rebound.
→ Pair “what others do” with “what’s approved.”
The Grammar of Society
Norms need both empirical (“others do it”) and normative (“others expect it”) signals.
→ If people can’t see what’s expected, they won’t act on it.
Norm Messengers in School Networks
Disciplinary issues dropped 30 % when respected students modelled anti-conflict behaviour.
→ Norms spread faster through people, not posters.