100bb Stacks, Loosish table - 40% P/F or whatever, 10 players

Your dealt AJ or KQ in 3 positions - EP, MP and Button.
When you're button there is 3 limpers before you, when your MP theres 1 before you, in EP theres none.

How do you enter the pot (or not as the case may be) and WHY, in each of those 3 positions?

Do you play AJ and KQ different here?