This entails keeping an eye on both your hand and the cards that other players are discarding. It might make sense to pick up a card that your opponent is discarding isatta kinqf you see them doing so and it could help you finish a run or set. Also, it can be harmful to hold onto valuable cards that don't fit into your current strategy. For this reason, players should examine their hands frequently and make choices that support their overall strategy. An essential part of rummy strategy is mastering sets.