In Rummy Gold, observation is a crucial ability that can provide players with a big competitive edge. Players can learn a lot about their opponents' hands by observing the cards that they discard; this allows them to modify their own playindi slots accordingly. A player can assume that their opponent may not have many cards of a particular suit in their hand if they observe, for instance, that their opponent routinely discards low-value cards from that suit. The player can then use this information to guide their own decision-making, including which melds to prioritize or which cards to keep or discard. Players can gain from keeping an eye on the cards their opponents are picking up in addition to their discards.