Being acutely aware of what your opponents are doing can give you important information about their tactics & enable you to make better choices throughout the game. What kinds of sets or sequences they are attempting to create can be seen by observing how they draw from the pile or select from tace slotshe trash. For example, it is likely that an opponent is attempting to complete a particular meld if they routinely remove cards from the discard pile that are related in rank or suit. This knowledge can direct your own approach; for instance, you may decide to eliminate cards that might enable them to finish their hand. Also, you can learn more about your opponents' hands by observing when they discard. A player may have discovered a better option or that they are no longer pursuing a specific meld if they abruptly discard a card that they had been holding onto for a number of turns.