When an opponent discards a card, for instance, it could be a sign that they are giving up a valuable card if they appear hesitant or uneasy. An opponent may also have a strong hand if they come across as assurrummy howed & at ease. You can learn important details about your opponents' hands by keeping an eye out for these cues and modifying your play accordingly. You really can't overestimate the importance of discards in rummy. You can change the game's outcome by strategically discarding cards at the right moment. Being aware of the cards you are discarding & how your opponents might use them against you is an essential tactic.