In ep: limp-call. Try to set. Lead out as an overpair fold to a raise.
In mp: You could make a case for limping behind other limpers and trying to set OR raising ep limpers becuase they are probably limping with lower pairs.
In lp: Raise (sometimes reraise to isolate) to thin the field. Bet any flop (op dependant).

Remember, you can always just limp to set with JJ in any position if you like.

-'rilla