Well, against super aggressive players you should just let them bet into you when you have a hand. So it's feigning passiveness (but really it's a form of slow play)

Against passive opponents you should be aggressive with good hands since they will call you with crap. It's more along the lines of value betting than aggressiveness though.

Against loose opponents you should be slightly more tight preflop than they are - instead of any two cards, play connectors, two big cards and Axs since those will actually turn a profit against any two cards. Against a slightly tighter strategy play against slightly tighter so you are ahead when you're in the hand.

Against tight opponents you can play crap knowing they can't put you on a hand and you can bet crap flops.

This is what I mean by opposite, it's not REALLY opposite, but just playing a different style that will make more money on this table.

Although it's usually much more profitable to play against loose opponents than tight ones.