One tip that I can suggest is that when playing a bluffer preflop and you are out of position and you have a premium hand than you limp in and re-raise the bluffer after he has raised the pot. Same thing goes when you hit the flop. Check the bet and allow them to bet for you and depending on how strong of a hand that you have dictates as to whether you want to re-raise or just call the bluffer's bid after the flop. For example, if you have three of a kind after the flop, knowing the player is a bluffer it is a fair assumption that you can just call the bet and probably even after the turn depending on what the board is showing. After the river comes you might put a minimum bet in hoping he will raise you. You'd be surprised.