Most of us are introverts because we prefer quiet spaces and we (personally I do, I assume others do too) find crowded situations exhausting. I hate small talk and don't care about gossip.I must be the life and soul of this party. I am surprised that so many of you are introverts because you don't seem it. But then I suppose that's the difference between online and offline.
One thing I find weird is that when I meet people for the first time I am not shy at all, but if I meet someone I have already "met" online I feel 500% awkward and very shy.
However, I personally like low key parties, going out to certain clubs and bars and I'm very talkative when I am drunk. Introvert is not the same as having a total social handicap.
Edit: For example, I wouldn't go to a mainstream dance club, swarming with jocks and gold diggers, but I'd go to a dive bar with buddies, listen to good music and chug a few liters of alcohol. Or do the same thing at someone's house.