For some people, that IS living. They are doing things that they enjoy and get pleasure from (genuinely, not simply because it's something that's somehow expected of them). Whether it's boring to us doesn't really matter. And among NT's, too, they all find different things, and judge other NT's on their own habits. I think everyone has different ways of finding happiness and having fun, even if we or others don't understand them.
And re:
badwolf (awesome username, by the way...Who reference?) I have the same problem, and problems related to that. Sometimes I'll come across an acquaintance, and we exchange the usual greetings, maybe have a little small talk...and then I'm never sure when to leave the conversation. It's usually an awkward few seconds before the other party says, "Well, I guess I'll see you!" and we both manage a feat of daring escape.