Understanding your opponents' tactics & goals can be greatly aided by keeping a close eye on their behavior. You can learn about their hands by seeing which cards they pick up and discayono for every indianrd, and then modify your own approach accordingly. An opponent is probably trying to finish a run or set in a particular suit if, for instance, they routinely pick up cards from that suit while discarding others. Knowing this enables you to decide which cards to keep & which to throw away. You can also predict your opponent's next move by monitoring their movements.