BPS Research Digest: That's not a poker face, this is a poker face

BPS Research Digest: That's not a poker face, this is a poker face: "What does your poker face look like? If it's the traditional, stern, emotionless expression, you may want to consider practising a new one. Erik Schlicht and colleagues report that a friendly, trustworthy face is more likely to influence your opponents, leading them to think that you've got a good hand - that you're not bluffing."