You can learn more about your opponents' hand and modify your strategy by watching their movements and discards. Methodical Card Administration. Having a strslot appsategic mindset when playing rummy also means knowing which cards to discard and which to hold onto. Throughout the game, it's critical to keep track of the cards that have been picked up and discarded because this will enable you to make decisions about which cards are safe to keep and which should be discarded.