Opponents may become uncertain as a result of this psychological element of the game & end up making poor choices because they believe the wrong things about your hand. Card countislots worldng, which keeps track of which cards have been used or discarded during the game, is another sophisticated strategy. Players can make better decisions about which cards to draw or discard themselves if they are aware of which cards are still in play. This method can give you a big edge over opponents who aren't as perceptive, but it takes practice & focus.