When you play hold em do you play really tite or do you find yourself betting more agressive?

I used to go all in alot which most of the time helped me win alot but also on other days killed me earily. Now I've been reading alot more and studying poker. I now play very tite and then use knowledge from a book I read called " Zen and the Art of Poker " and has helped me alot with not playing emotional and it's really improved my game.
In hold em the most facsinating thing i've found is that any form of play can win.
Which is yours?