A further successful tactic is to pay close attention to what your opponents discard. If your opponent discards a card that might help you finish a set or run, it might rummy pricebe worthwhile to keep the card until you can make good use of it. On the other hand, it can be a sign that an opponent is concentrating on creating particular combinations if you observe them routinely discarding cards from a certain suit or rank. You can use this information to help you decide which cards to keep and which to discard.