They tell you that a good girl is quiet. They tell you that a popular girl is social. They tell you that the latest in clothing is sheer leggings. They tell you that Zac Efron is so hot even though you think he looks like a mattel Ken doll.In everyone's life, there is a 'they' who tells you what to like, what to hate, what to scream at, what to get annoyed at, what to eat, what to sleep.And in...