I've noticed that when you bluff on the flop randomly (c-bet w/o even a draw or overs) that you get screwed more often than not. The bluff''s that come naturally are more successful- ex, ur drawing to a straight, 3rd spade comes on, you fire b/c looks like ur were drawing.

Whenever u think 'hey i think ill bluff' u often get screwed cause when the person calls ur garbage ur like 'now what?'