When an opponent routinely discards high-value cards, for example, it can be a sign that they are attempting to form a particular set or sequence. You can modify your gameplay and possibly stop thev appir progress by continuing to observe these patterns. A key component of winning at rummy is skillfully handling your hand. The goal for players should be to maximize their chances of creating valid combinations while minimizing their deadwood, or cards that don't contribute to any melds. Making difficult choices about which cards to keep and which to discard is frequently required for this.