Somewhat poker related, but I guess applies to life in general ... An article I stumbled upon called 'How to detect lies '. A pretty in depth description of all the things to look for when you are trying to figure out if someone is lying to you. This can obviously be applied to situations at the poker table.
Some highlights :
Liars mismatch facial expression with what they are saying .. either completely or partially. Imagine asking someone if he likes his hand and he replies 'I love my hand', and then a second later smiles. That's much less likely to be true compared toa case where he smiles AND says he loves his hand AT THE SAME TIME. In more obvious cases they could leave out the smile entirely.
Liars tend to sit still or restrict their movement. I know this effect as 'the freeze' ... someone shoves all in and sits entirely still, sometimes not even appearing to be breathing ! This person is not sure about their hand or on a complete bluff. While if they are chatty and moving around a lot, they are feeling confident.
There's also an article about micro expressions, these are harder to pick up but nonetheless important to know about. I have often noticed the involuntary 'snarl' of the upper lip when someone looks at the board ... they don't like the board !
