Smiley? Just follow this:
In all seriousness though, I used to be really quiet, and then I decided to be....louder, I guess. But in general, I just walked with more confidence, stood tall, you know, not slouched over (Actually, I never have done that, but still), and just looked people in the eye when talking, and tried to be friendly. Different situation here, but I think the same thing applies. Just try to reinvent yourself, and be confident, act confident, look people in the eye, and be friendly.
Why do you look down on people? Maybe if we could understand that, we could help you better.