Is this arrogance, or is this something else?

I often times find myself looking down on people. For instance, this girl, Mandy, was attempting to be friends with me, and she was sort of checking me out, but I look down on her. As a matter of fact, I look down on everyone I meet for the first time. It's all on a subconscious level though. I have a sense of disgust with almost everyone. It's as though I look down on them people are merely sick creatures not worthy of even looking at me. I'm having trouble not looking down on people. It's a natural thing. I don't consciously look at people in disgust. I understand why people say they think I am the type of kid that was fed with a silver spoon his entire life.