Regretfully, I place lots of emphasis on physical appearance whenever I meet someone
If I think a person looks geeky or nerdy, then I take that as a warning light. Although, of course I would actually wait until we have a chance to socialize to make a judgement. If the person is as weird as the image I have already formed my head, then I already have a dislike. If they are not like what I pictured, then my emphasis on physical appearance is shattered.
If I think a person looks hot, then I assume I'd have no chance at being able to speak with them. I won't pursue socializing with them unless they actively start up the conversation, and I know that I won't be shunned.
If the other person is disabled in some way, then I instantly form a pity preconception and I'm unsure if that comes out in my actions or mannerisms when conversing with them.
Considering that, I always try not to look ugly in the other person's eyes, lest they think the same way that I do.
Although, I always try to be nice, regardless of how a person looks and keep my true thoughts about how nice they look in my own mind.
How ya doing, buddy?