Romans 2 says You, therefore, have no excuse, you who pass judgment on someone else, for at whatever point you judge another, you are condemning yourself, because you who pass judgment do the same things.
What do we need to do? Is it someone in the neighborhood? Someone at school? Someone in the youth group? I can't tell you how sad it would be for someone to feel unwelcome within our own body.
Remember Shallow Hal? http://www.youtube.com/watch?v=YGaqlO9bClk
Ask God in your daily life to be able to see people the way he sees people. Change your perspective. Change other people's lives.