So... I was sitting in lecture in my computer systems course next to a girl who I've (sort-of) known for a few months, but not really talked to much... just about homework and stuff. As you would imagine for a girl in a computer systems course, she's not the most social of people, very awkward, etc, but also very smart, much more logical than emotional, and pretty much everything you would expect if you tried to form a stereotype in your mind.
Anyway, conversation thusfar has been... well, largely artificial feeling and otherwise mostly-forced (talking about class assignments in classes we shared and stuff). And I'm trying to get with her or anything, so that's perfectly fine with me. Anyway, today she brought a little stuffed animal elephant to class and left it on her head for a while, while we were talking before class, as well as during the first half hour or so of lecture. What was strange was, she said something about how something (I forget what exactly... either the teacher, or some class, or assignment description, or something) was "weird"... so I chuckled and said "says the girl with the elephant on her head." She gave the little "hey!" -- that wasn't really upset -- and laughed and whatnot, but after that there was a definite shift in the tone of the conversation. She initiated conversation a bit more, sounded much more natural, and was very clearly (even to me) much more at ease than before.
So my question is: "what the hell?" I'm usually extremely careful not to tease people, even if it's not serious, just because I used to have a problem with it in high school (couldn't tell who was offended by what, hurt lots of feelings, etc, and forced myself to stop being a douche by stopping all of that... which made me a pretty boring person, too, since those were the only jokes I knew how to make, but I considered it worth the tradeoff)... but why would this happen? Why is someone more at ease after someone poked fun at them? Are they so used to being teased that it puts them in a more "familiar" situation, or something? What went on there?