An opponent might be nearing the completion of a meld, for example, if you observe that they have been regularly drawing cards from the discard pile. It could be prudent in cluster slotsthese situations to keep any cards that could aid them in finishing their set or sequence. On the other hand, it's just as crucial to know when to let go of specific cards. It might be time to get rid of any cards you are holding onto that don't support your current melds or strategy in favor of drawing fresh cards that could improve your hand.