I think you have to make the standard adjustments to loose passive games which are reducing your bluffing frequency to only the most profitable and highest FE situations and value betting much thinner.

For example you may want to check back a lot of flops you miss instead of cbetting if your opponents are passive and going to call you with any piece of the flop. Also you should be betting top pair for value 2 or even 3 barrels if your opponents are going to call down with midpair. Finally you should rarely slowplay or try to be tricky. If you have a hand your line should be: bet, bet, bet.

Preflop strategy should be to get in cheap with speculative hands (good ones, not "any two") like suited connectors/gappers/small pps and make strong value raises with your good hands. If you play loose passive you're playing their style and trying to beat them at fish poker. Tight aggressive style dominates loose passive games.

Against maniacs you generally make a hand worth a showdown and just let them hang themselves. The wilder they are the lighter you can call down. TPTK looks really good when your opponent is routinely 3 barrel bluffing with air.