This dual focus enables players to anticipate their opponents' needs and enhance their own hands, possibly preventing them from finishing their melds. Memory and Card Counting. Counting cards real money slots mobileand remembering them are two more crucial components of strategy. A useful way to learn what your opponents might be holding is to keep track of the cards that have been played. You can modify your approach, for example, by choosing to keep lower-value cards that are less likely to be melded by others, if you observe that a number of high-value cards have already been thrown out.