I started drinking a bit at 19 or 20, not sure which. Up until that point I had hated anything alcoholic I had tasted. My drinking habits have pretty much always stayed the same....I drink occasionally, sometimes at parties, sometimes I skip drinking at parties, I am perfectly capable of enjoying myself without it.

I guess the major difference between me and the previous posters is that I do enjoy getting drunk occasionally. Never enough to make myself sick, I always make sure to have plenty to eat, and I ALWAYS have a 2 liter bottle of water with me, that I make myself finish drinking before I go to bed. I've never been hung over, and I'd say I do that maybe once a year, probably a little less often.

Oh, I have also never drank by myself, except once where I was making beer-braised rabbit and I finished the last ~4oz of the beer rather than dumping it down the drain.