Do I bluff?
No. Never. Whenever I put in a big bet, I always have the nuts. Yeah, right.
If an opponent shows weakness, I bet. If he check raises then I fold unless I'm holding a good hand. And even then I think about folding. More often than not they fold.
A somewhat sophisticated player will sometimes bet into you after the flop, often a bluff.
odds are they're only going to hit 1 out of 3 flops, so sometimes I go over the top of them. If they come back at me then I know they have a strong hand and fold, but they usually fold 2/3 of the time. Or they call then checks into me after the turn, I bet, and they fold. Couldn't tell you how many times that's happened to me.
Bluffing is a tool, but don't use it too often, like a character I encountered yesterday morning. Whenever I had the small blind and everybody folded ahead of him he'd go all in. First time he did it, I had AQ and folded. The second time he did it I again had AQ, and folded. The third time I had garbage and folded. The fourth time I had AKs and revealed his Q6o when I called. I knocked him out of the ballpark when I flopped and turned kings.
You can get away with it for awhile, but if you do it too often, people get wise. That's why it's probably best to wait until the blinds are big. And if you bluff after the flop make sure you have a few outs just incase you get called.