You can also use deception to give your opponents false information about the cards you have in your hand. For instance, you can give the impression to rummyares apkyour opponents that you are not close to finishing a sequence by discarding a card that is a part of the sequence you are trying to form. This may present a chance for you to gather the last few cards you require without drawing attention to your strategy. Knowing When to Declare: Timing Is Everything.