None. Just call the big blind. You don't want to put yourself in the situation of playing a hand like K-Q out of position in a raised, and probably multiway pot.

Also, if you do hit a pair on the flop, most players will put you on a weaker hand. This may lead to more action from a hand like K-J or Q-J. If you miss, you can just quietly check-fold.

There are ordinarily dangers involved in letting several players into a pot with a strong holding, but this is hardly the case with something as marginal as K-Q offsuit.