Bottom two pair...if your opponent is a TOTAL MANIAC or just extremely loose, play it like the nuts and bet big and reraise all in if you think they'll call it.

Against all other non Passive opponents, reraise a bet in Late Position or bet the pot if no one else has bet. Fold to a reraise at any time. If you get called check-call down to river unless they suddenly show alot of strength, which probably means they were slowplaying nuts or made a good hand, in which case you fold. I don't like betting again because getting called once means there's a good chance you'll get called again, and you really don't know where you stand. Maybe they have a similar weak two pair.

Against Passive (Rocks) opponents, don't reraise their bet, cuz it usually means they have a better hand than you. Call or Fold.

If you improve your hand, then just generally play it like the nuts.