Using a joker, for example, can help you finish a sequence and meld your hand more quickly if you have two cards in it but are missing one important card. But just as crucial is knowing wheplay rummyn not to use a joker. You risk missing out on opportunities if you hold onto a joker for too long and then draw the cards you need to finish your melds without its help. Also, you might want to strategically use your joker to impede your opponent's progress if you see that they are on the verge of winning and have been discarding cards that might help them finish their hand.