if the table is raising almost every orbit, fold 22-55 at any stake utg and utg+1. raise every other pocket pair from every position, at any stake.

if the table ISNT raising a lot, usually the case at .25,.50 NL then limping is probably the best play as C-bet's aren't respected. Just adjust to your table. Generally limping in 6-max is a bad play, unless you can't get people to fold with continuation bets, and they call with any pair/gutshot.