np. Expressionless.

a face without any interpretable expression (as that of a good poker player)

An expressionless face used to intimidate or confuse opposing players, often used when "bluffing" to keep your hand a secret.

a non-committal facial expression, traditionally one of focused indifference, designed to give opponents no information on the strength of a hand

A players' facial expression which does not show any emotion or change regardless of what is happening during a poker hand or game.

Impassive expression. Either honed from years of practice or inadvertently through too much botox.

A face that shows no emotion or tells that would give away a playerâ€(tm)s holding.

A face not showing any emotion or change in expression.