Keep your options open. Players should also try to hold onto cards that may be useful in multiple sets or runs in order to keep their options orummy nobobpen. If a player has a 3 and a 4 of the same suit, for instance, they may use those cards in a set with another 3 or 4 or in a run with a 5. As the game goes on, players can improve their chances of forming sets and melds by remaining open-minded. Be Aware of Cards That Are Discarded.