keeping an eye on card draws. It's possible to estimate your opponents' possible combinations and modify your own strategy by observing the cards they take out of the dfree on slotsraw or discard pile. Examining Throwaways. Reading your opponents' discards and figuring out what that means for their hand is another essential part of reading their play. An opponent's repeated discarding of high-value cards or of particular suits and ranks, for example, may be a sign that they intend to form a certain combination.