Seriously, though, I am a very social person, and have been known to strike up a conversation anywhere with anyone. Several of my friends have made the comment, "he doesn't know a stranger." I generally can strike up a conversation, find common ground, and be involved a meaningful chat with someone within minutes of saying "hello." I've put this to great use when traveling on business, as I'm generally alone when I go to eat or grab a drink at the hotel bar. Often, the people I meet are also sitting alone, and are happy to have the company, but not "brave" enough to start the conversation.
I do cherish a bit of alone time, but if I'm in a group setting, I'm probably going to be in the middle of the action, so to speak. Unless I'm hosting, in which case I'll be in the kitchen, with several people standing around watching me prepare drinks, cook a meal, or put together some snacks. I need a bigger kitchen!