[JohnnyFX]

[ QUOTE ]
I'm not a big bluffer, I don't see the point in micro-limit cash games with 4 or 5 players to most flops. But I DO tend to call a big bet or raise on the river, when my gut tells me I'm beat.

[/ QUOTE ]

This alone can turn you from a winning to a losing player. Especially if you haven't played that many hands against the villain and don't have a good read on whether he bluffs a lot or not. While you may fold the best hand some of the time, if the villain really is bluffing a lot it won't hurt you in the long run. If he keeps bluffing enough, sooner or later you'll be able to trap him for all his chips.

The main point though, is don't make costly decisions until you've got a good read on your opponent. Once you do, it's much easier to know when to lay it down and when to make your stand.