Knowing when to discard a card and when to hold onto it is one of the most important rummy skills. Giving your opponents an advantage by discarding the incorrect card can make it easier for themrummy nobo to finish their sets or sequences. Therefore, before choosing a card, it's critical to evaluate its potential value. For instance, you might want to hold onto a high-value card that might be able to finish an opponent's set until you are certain it is no longer useful to them. In contrast, you might want to discard a card early on if it is not likely to help you form any combinations.