I'm a nerd through and through. I'm not exactly an open book, but I'm not closed off either. I'm somewhere in the middle. I have a very active imagination; it leads me to over-analyze sometimes. I like my alone time and I also like being in the middle of a party with a bunch of strangers... You never know what kind of drunkenly awesome conversations might be had. I have been many different places (almost all of Europe) before I was 15: one of the perks of being a military brat.
ENFP though the Myers-Briggs test isn't the be-all end-all of a personality.