
What is this so-called “poker face”? Poker is a popular game card that had been going on for as long as I lived. As far as I know, it is a game where one has to win either because he have the highest card or he bluff’s to have a higher card when in fact that he does not. (not so good a game huh?! A liar’s game, I call it!) And so was born the poker face, a bland, no-reaction-face, to cover whatever it is that you are feeling as you draw a card.
This then is being used according to Mr. Webster to describe a person who have “an expressionless face”.