Calm facial expression, composure, self-control.
Appearance, especially the features and expression of the face.
Favour; support; encouragement.
To tolerate, support, sanction, patronise or approve of something.
An impassive facial expression cultivated to prevent other players from determining whether one's actions in the game are the result of a quality hand, or of bluffing.
Any similar expression used to prevent giving away one's motives, feelings, or situation.