It could make sense for a player to hold onto high-point cards until the endgame, when points are most important, or until they can be used effectively if they have multiple cards that aren't adding to their meldall rummy games. To help them decide which cards to hold and which to discard, players should also keep track of which cards have been discarded and which are still in play. During Rummy Game 51, a close watch of the actions of opponents can reveal important details about their plans and strategies. Players can learn anything about the kinds of melds their opponents are trying to form by watching which cards they pick up and discard.