Ace in the Hole (5) Someone who has a "poker face" usually is good at "". is trying to trick a person into believing something about you that is not true. In poker, you bluff when you bet heavily . The idea is to make the other players believe you have strong cards and are sure to win. If they believe you, they are likely to drop out of the game, leaving to you the money they have bet.    ´Ù¶ô¿ø ÊÊ 'Voice of America'¿¡¼­ ¹ßÃéÇÑ ³»¿ëÀÔ´Ï´Ù.