Read HOH Vol 1 & 2. This is all covered in great detail. If you have the lead in the betting PF, you should mostly lead out with a continuation bet if you are down to 1 or 2 players remaining against you. Against more than that this is not a wise play...........the odds that someone hit a hand they want to defend becomes to great with more than 1 or 2 players for this to be profitable.