Players need to keep a close eye on the cards their opponents are discarding in addition to creating sequences out of their own hand. Players can learn a lot abprogressive slotsout their opponent's strategy & predict their moves by keeping an eye on which cards are picked up or discarded. Changing with the Times. When an opponent discards a card that could help you finish a sequence, for example, you might want to pick it up while also thinking about how it will impact your overall strategy.