An opponent might be attempting to finish a sequence or set involving those cards if, for instance, they routinely remove cards from the discard pile that are part of a particular suit or rank. Equipped with this understanding, players can modify their own tactics appropriately, espin and winither by giving priority to their own combinations or by obstructing opponents' possible melds. Also, knowing the patterns of your opponents can help you decide when to play conservatively or take chances. It could be a good idea for a player to play more aggressively if they observe that their opponent frequently keeps high-value cards until the end of a round, forcing them to make snap decisions. On the other hand, regular early discards of low-value cards by an opponent could indicate that they are about to form melds & should be cautiously approached.
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