I think some people see me as a geek, just on the grounds that I'm a PhD student. I don't really see myself as a geek, and really don't think anyone else is a geek either, as we all do things we enjoy, but some people don't.
For example, someone may enjoy Chess, but some people may see that as a geek thing to do. But the people that call that person a geek may enjoy reading up on history, or plane spotting etc. So, I think that everyone is different, and enjoys different things.
Same as I enjoy doing a PhD, but I also enjoy many more popular things as well. Does that mean I'm a geek? thats for others to decide, and I don't care what they think either way to be honest as I'm doing what I enjoy