Playing when a flush comes on the turn

[SirFWALGMan]

If your the guy with the flush draw, do you get paid off more often if you lets say re-raise the flop and act weak when your flush hits the turn? Disguise your hand? I have seen this work sometimes, and people try to bluff me off the nut flush and I take there entire stack.. I have also seen this backfire when a smart player re-raises me and I can not call.. Any idea's?