Since cards can be picked up and used to complete sets and runs in their hand, players should also be aware of the cards that their opponents are discarding. Also, players need to be aware of the cards they are discarall rummy appding because their opponents might pick them up and use them against them. Keeping track of the cards that have been played can help you manage your hand better by allowing you to make well-informed decisions about which cards to keep & which to discard. This can assist players in concentrating on gathering cards that will strengthen their hand rather than picking up cards that are unlikely to aid in the formation of sets & runs.