Making sets and runs as soon as the game begins is one of the most important rummy strategies. Making deliberate decisions about which cards to keep and which to discard requires keepirummy nababong a close eye on the cards that are being picked up and discarded. Recognizing Your Rivals. Observing your opponents' movements and attempting to predict their next moves is another crucial rummy tactic. This will assist you in determining when to declare "Rummy" and win the game, as well as which cards to keep and which to discard. Keeping an eye on Thrown Cards.