Decisions about which cards to pick up or discard can be made with greater knowledge. Using psychological tricks while playing is another sophisticated tactic. This involves bluffing by throwing away cards that could give opposatta king resnents the wrong idea about your intentions or by keeping some cards longer than is necessary to cast doubt on the strength of your hand. You can also learn about your opponents' strategies by watching how they behave, such as how they react when you pick up particular cards. It takes practice and careful observation to incorporate these sophisticated strategies into your gameplay, but doing so can greatly increase your chances of winning at rummy.