Changing to Counter the Moves of Your Rivals. Being aware of your opponents' movements and modifying your strategy accordingly is a crucial part of knowing when to drop & when to hold. When one of your opponents is about to declare "Rummrummy nabob 777y," for instance, it could be wiser to drop early to reduce the amount of money you lose rather than taking the chance of being stuck with valuable cards that will count against you at the end of the game. Learning to Drop & Hold: A Comprehensive Guide. Ultimately, in Rummy Yono, determining when to drop and when to hold calls for a blend of strategic planning, observation of your opponents' movements, and flexibility in response to shifting conditions during the game.