For many reasons, I grew accustomed to fit into many diverse social groups.
It's not only about the way you dress, but also which "side of you" you present to others. I mean, what I've learned is that there are many "I" available in me (and everyone, please generalize at will), and too many people consider wrongly that they're "one and only" and that it's "being true to oneself" to only expose one side of themself.
This is wrong. I, you and everyone, we are all individually a multitude and using this multitude to get yourself what you want (friends, information, jobs, sex, you name it) is not only a skill, which would sound a bit too utilitarian, but also and most importantly, it is a way to acknowledge yourself and let the others know the multitude and complexity and diversity of you.
And I think it's awesome.