Originally Posted by Iconoclastic
Since it's still pretty early in the SnG, I would take an unusual line.
You're in the BB. Which means you'll be severely out of position for the rest of the hand. Don't raise preflop, with the intention of checking top pair or two pair all the way to the river. Instead of risking your whole stack, early in the tournament, the most you could lose with this line is your big blind, which is tiny at this point.
If that level of Passivity is too much for you you can check-raise at some point, but you'll still not have information on the other players hand.
Moreso in tournaments than ring games, POSITION is more important than the cards you hold in your hand. Don't be blinded by the fact that you have AK. AK+bad position=marginal hand early in a SnG.