The social codes are different, distinctly preppy, fraternity-sorority, hip, flip, fast-and-cute, nauseating, and artificial. I have no doubt that the majority of these people are interesting, likeable, intelligent people. Unfortunately, they've been taught not to show it. The problem lies in socializing. When these people socialize, they don a common "mask." They talk a certain way (hip, flip) act a certain way, do certain things, all of which have been defined as socially acceptable. By acting in such a way, one makes "friends." With time, friends use their masks less and less, and a true, deep friendship results.