This entails keeping an eye on the cards they are forming into sets & melds, as well as the cards they are discarding. Recognizing the patterns of your opponents allows you to predict their mcasino bonusovements and modify your strategy accordingly. Keep an eye on the Discard Pile. Keeping an eye on the cards your opponents are pulling from the discard pile is a useful tactic for spotting and exploiting their patterns. You can then modify your approach based on the important information this can provide about the melds and sets they are attempting to form. Examining Threw Cards.