You can use this information to guide your own choices regarding which cards to keep or throw away. Also, by monitoring your opponents' movements, you can predict what they will do next and paly rummymodify your approach accordingly. It might be time to play more defensively by discarding cards that could help your opponent finish their melds if you see that they are almost winning by melding their hand. As you compete with your opponents in a mental chess match, this level of awareness not only improves your gameplay but also introduces an exciting element of competition.