[tongni]

It's all about adjusting to your opponents really. The more you play the more you'll be able to pick out specific patterns of play, weaknesses, and how to exploit. Metagame is pretty important too, for example if they know you checkraise the river a ton then it reduces their bets last to act on the river to either bluffs or strong made hands. It's nice when someone checks behind top pair on the river HU against you.