You shouldn't judge people by the way the they dress or act.  How would you feel if someone judged you before they got to know you?  Would you want  them to get to know you first or just judge you by the way you act or by who you are dating?  So never judge someone before you get to know them.  Its like that old saying never judge a book by its cover.  I am always being judged by either my voice or my personality.  Being judged isnt a good thing.