I dont bluf that often, but when i do bluf preflop, and then a flop comes up, usually i have a decent flop i guess im lucky with that.
And on flop , i look at opponent, chip stack and betting paterns, position , own hand , me drawing to a better hand ,, him being on the draw , it's all about the mind .
Bluf is saying i got it ,but you have to sell the hand

, if somebody doesnt understand this sentence , you can ask what i mean ...