MISTAKE #9:
Playing Your Position Wrong
Positioning is EVERYTHING in Texas Holdem poker.
Good positioning means you get to see what your opponents do FIRST before you have to act. Based on their behavior and betting, you can make an informed decision about what YOU want to do.
Good positioning is LATE positioning. That means you're one of the last to act after the flop. The most IDEAL position is the dealer (or button).
The mistake most players make is playing the CARDS without considering their positioning. For instance, the way to play pocket Aces in the big blind is totally different than the way to play it in the dealer position.
And that goes for all starting hands... and all positions. The basic strategy you need to know is that you want to play MORE starting hands from a later position. And you want to play these hands more aggressively.
Most of your bluffs should come with good positioning too... because that's when you'll have the best read on the players at the table.
In early positioning you want to play FEWER hands. Especially when you're immediately to the left of the big blind (also known as "under the gun").
spoiler:
http://www.worldpoker.se/pokertips.html