[jakobnicolaus]

Yes, but actively communicating with some of the other players through agreed conventions would probably count as collusion and be illegal in N-player poker..

[nabla9]

I was not talking about collusion.

You get information of how people play just by observing their play completely legally.

[jakobnicolaus]

Sure, but in Hanabi the point is to be as informative as possible, while in poker it should be the opposite (unless you collude).