Any poker player on this site? I like to play Poker and Blackjack during my spare time and I'm a big fan of Game theory. I used to think that keeping a "poker face" in a game of poker is a very important part of game strategy. "Poker face" is not just about the face but about your entire body. When I play poker, I'm and remain calm whether I have good cards or not. I'm consistent. I wear sun glasses to avoid revealing clues with my eyes. However, according to this study : Human Wagering Behavior Depends on Opponents' Faces A neutral facial expression may not the best strategy when playing poker, the better strategy would be a face that contains emotional correlates of trustworthiness. Maybe, I should play without sun glasses!?