You can learn a lot about the tactics and goals of other players by paying close attention to how they use their hands and which cards they decide to draw or discard. An opponent may be attempting to compapkplete particular sets or sequences if, for example, they routinely remove particular kinds of cards from the discard pile. You can use this information to help you decide which cards to keep or discard, which will enable you to play more defensively when needed. Also, observing behavioral indicators and body language can give you more information about the tactics and confidence levels of your opponents.