I would suggest, and I think many others would too, to play a TAG style early in tournaments. So Tight, aggressive in the early stages. Once you start building a stack and the blinds start increasing you will want to loosen up a bit and open your range of hands played. Then, once you reach the bubble and ITM you will want to play for the win, not just to cash. This theory is debatable but I have found that it has helped me significantly. Once you near the final table you will want to take notes and carefully pay attention to pay jumps and the players habits.
Of course this is a summary of what you might expect someone tell you to do when it comes to MTT strategy.
