Making decisions is essential to any successful Rummy game. While taking into account both short-term gains & long-term strategies, players must continuously assess their options based on the state of play. This calls forummy all app listr intuition, experience, and analytical abilities. Essential Elements of Successful Decision-Making. When choosing which cards to keep, a prudent player will balance the possible advantages of doing so against the dangers of keeping them for too long, particularly if those cards might aid an opponent in finishing their melds. In order to improve their ability to make decisions when playing rummy, players should be mindful while playing.