I like this guy and we were at a dinner party sitting near each other talking. At one point, his knee was right next to mine but so subtle if I didn't pay attention I wouldn't have noticed.It stayed for a couple of minutes than,unfortunately,moved away. He did the same thing with his elbow and again,though it was so subtle.....My question is was this an accident or was he flirting or testing the waters? I know this sounds like a really naive question but I don't have a lot of experience and want to know if he is showing his interest in me or not. Thanks guys!