Who are You?

I've becoming increasingly interested in how people answer this question. Who are you? Who am I ? And why do we answer the way we do?

I've been asking people here and there and so far my theory is holding out. But, I don't want to share that theory because I want to gather more results and not taint the waters.

So, if you'd be so kind as to help me gather data, please let me know how you would answer that question. If you're bold enough, leaving it in the comments is great. If not, please send me an email and let me know your answer. Once I've proven my theory, I promise to share why I've asked!

Repeat to yourself: This is fun. This is scientific gathering data at its best. If I just smile and nod, she won't hurt me.