When playing with 2 or 3 people, simply use a coin of your choosing as a special steal token. Since there is no partner to exchange wild cards with, you can use the special token to steal a wild card from an opponent each round and only once you qualify and your cards are in play. Put your token in the center, once used till the next round. Remember you have to have the right card to steal and can only do once per round. Also once you steal the wildcard, you cannot put it in your rack. The wildcard has to stay in play.