[Dr_Doctr]

3-bet often to narrow his range both in the hand and to make him think twice before raising into your button - let him know you have position on him. I would mix in 3-bets and calls and rarely fold KJo but I prefer a call with this hand. Depending on board texture try often to push him off whatever trash he has after the flop. You could just fold if you're not confident playing this guy after the flop and it wouldn't be bad. Just make sure you punish him for raising light by 3-betting him often with solid broadway hands and mix in some SCs and small PPs also to widen your 3-bet range so you're not giving away your hand. He'll have to tighten up or be continually playing big pots OOP with inferior hands which is a losing proposition. When he tightens up make sure to re-adjust your range for 3-betting him again.