Similarly, you shouldn't bluff too much. There are two reasons for this. First, bluffing typical opponents just a small percentage of the time gains the desired effect. Second, some of your opponents will call too much, especially at the lower limits. Bluffing this type of player can be suicide for your bankroll.
Position is important.
Acting last is an advantage in virtually all forms of poker, as you will have gained information about your opponents' hands, but they will not have gained that same information about your hand. Adjust your play, depending on your opponents. Poker is a people game. Who you are against and how they play can make a critical difference. In addition, an opponent's mood may change, depending on how he is doing in the game.