"Shy people notice everything but they don't get noticed."
People especially those in school, always judge others by their social rank in society. "If your not popular your a nobody." Yet if you are one of the few and extremely rare people who actually make and effort to be friends and socialize with those in different "ranks" of you, you quickly learn that no matter how you are categorized everyone is a human and while nobody is 100% alike that doesn't mean they are 100% different from you.