Personally, I see myself as being intelligent, funny, compassionate, passionate, serious, loving, emotional, and mild-mannered. I've been told that I am 'a nice guy' often enough to think that maybe someone is right--though I do have my rough edges.
When left to my own devices, I tend to be quiet and keep to myself. Yet I can be quick to strike up a conversation--when provided with the opportunity. I'm the guy that typically spends his lunch, at work, reading a book in some quiet outdoor setting, but will set aside his book when asked what I am reading. I am verbose, yet soft-spoken. I'm the person that others come to for answers and try to share every bit of knowledge and insight that I can.
I'm a goofball and dork. The person that others look at and don't quite understand, even after spending a little time trying to get to know me, but I've been told that I am worth the effort of trying to get to know.
Even with all of that written, it still doesn't give you a full summary of who I am.