Anti-Social?

I don't think I am anti-social. I just have high expectations for people. I know what we can be and I don't see many folks living up to it. So I am cautious about letting people get too close to me. It's simple really. I don't want to be disappointed by them. In social situations where I don't know many of the people, I become an observer. I sit back and watch the interactions and try to learn what kind of people are around me. I don't say much until I feel like I know the lay of the land. Does that make me anti-social? Maybe in some people's eyes...but then those are the people I tend to be disappointed in.