During your time playing poker, you may have heard players emphasizing the importance and power of having "position" at the table.
What is position? Why does it matter?
Simply put, position is where you are at the table, in relation to other players, and in relation to when those players act during betting. Having good position gives a player an information advantage over their opponents: having good position allows one to see how other players have acted, and can make their own moves accordingly.
The trick to using position is to use this information to your advantage. For example, if you're in a hand and are playing against one opponent who checks both the flop and the turn, is he likely to have a stronger hand, or is he likely to have a weaker hand? Chances are, his refusal to bet indicates your opponent has a weaker hand, thus allowing you to bet on the turn with a higher-than-average likelihood of the opponent folding.
It's a good idea to keep position in mind as much as possible when you're playing a hand. This is particularly true after the flop, as a player's positional advantage becomes more significant (as more money is bet and more cards are dealt) on every subsequent round of betting.
For example, we may decide not play the following hands out of position, but may play them with good position:
68 910 56 K5 A6 K9
As we learned earlier, having good position allows us to see how others behave before we act, giving us a significant advantage.