Yes there's lying in poker, but there's also fairness to the rules. This changes when you get two or more people at a table working together. There's lots of

Yes there's lying in poker, but there's also fairness to the rules. This changes when you get two or more people at a table working together. There's lots of different strategies they can employ. Side channel communications, simple agreed upon profit sharing, betting strategies, etc. Since people are expected to lie in poker, what rules do you add in to change the behavior of people to reduce the chance of coordination, without changing the dynamic of the game?