A popular question, which has several answers and applies to pretty much any small PP.
Low blinds - early/mid/late position - Flat call the BB, fold if no improvement, fold to a raise with more than 1 caller
Average blinds - fold early position, usually raise mid/late position. Do you really want the BB to see a free flop with you holding bottom pair and facing 2 overcards like 86os?
Large blinds - Again, depends a lot on stack, players at table. Lowish stack I would usual make an all in move with low pockets, medium stack I would prob fold or if I am big stack I would prob push here
Again, there is no set way to play a small pocket pair. Experience and knowledge of the table are a big help but sometimes these can be monster and other times they can be ugly