Maintaining a "poker face"—a neutral expression that hides one's emotions—is equally crucial for keeping opponents from learning about one's specific hand strength. In poker, strategic decisicoral slotson-making is just as important as psychological strategies. To decide if it is mathematically advantageous to keep playing a hand, players must evaluate pot odds, which are the ratio of the pot's current size to the size of the bet they must call. This calls for the ability to rapidly assess risks while playing the game in addition to having a solid understanding of probability.