I went to a large highschool. My graduating class alone had about 600 people in it. I didn't know a lot of people, and only had a handful of close friends, but I can't name anyone who really had a problem with me. Yet, I'm hard-pressed to think of a time when someone I didn't know would even smile in passing.
I don't think I've become any more approachable. I'm no more outgoing. I don't really know very many people around campus. Just walking across campus, though, people I've never spoken to will give a friendly smile. Sometimes we even exchange a passing "hello."
It's not the kind of interaction one really thinks about, I don't think. Does anybody wake up and think, "Today, I'm going to smile at everyone. I'm going to say 'hi' to someone I don't know." It's a small effortless action, too. It adds a lot to the atmosphere on campus though. Even with all the "drama" Drury still has an over-all open and friendly air to it.
I have to remember this for the coffee shop/venue (from here on out, I'm just going to call it "the coffee shop;" it's shorter and easier). "Service with a smile" is not a new idea, by any means, but I think it's easy to forget how much genuine friendliness can improve the mood and feel of a place.