As you play the game, you can make more informed decisions by keeping track of the cards your opponents discard, which can reveal important information about their possible sets & sequensattakingtodayces. In order to understand your opponents' hand & plan your moves accordingly, it's also critical to observe which cards they choose from the open deck. Not to mention, the secret to winning at rummy is good hand management. If your opponent declares before you, you can lower your point total by discarding high-value cards that are unlikely to form sequences or sets.