Are you a Geek or a Nerd?

I am the first to admit that I have a rather obsessive personality, and I've often considered that I may have a serious problem when it comes to my addiction to certain aspects of popular culture. One thing that I've always juggled with in the back of my rather empty mind is whether I would be classed as a Geek or a Nerd. Normally I am not one to address rather menial 'high school style' labeling, however It frustrates me when people use the terms Geek and Nerd interchangeably, when they each clearly embody different characteristics.

A Geek is someone who is enthusiastic about a particular topic or field. They generally are obsessed about anything to do with their chosen subject, collecting the latest memorabilia and informing themselves about the most specific and minute details that is has to offer.
A Nerd differs in the that they tend to be more academic, relying on fact and pursuits of the mind rather than delving into unnecessary trivia.

Another way to differentiate between the two would be that Geeks are usually fans of their chosen subject and Nerds practise theirs. A stereotypical Geek therefore can probably spend hours scouring the internet for spoilers for their latest show, whereas a Nerd is probably spending his/her time more productively and actually achieving something.

In terms of personality traits and how they spend their time, Geeks and Nerds could not be more different. Geeks, due to their enthusiasm and need to indulge in their interests, tend to choose careers or hobbies that exist in a more creative realm (writer's, artist's, graphic designers).
Nerds, as mentioned before tend to be more intellectually orientated, and so it's no wonder that they usually choose to spend their time programming computers, constructing scientific theories and building calculators...

I don't think that either Geeks or Nerds are particularly sociable however I think that in a social context they do behave quite differently. Out of the two, Geeks are more likely to talk about their interests, especially if they find someone who shares them. They may be oblivious to the fact that  others may not share their enthusiasm, and are likely to strongly defend their beloved subject if something is said against it. Nerds on the other hand, are definitely more introverted as they are probably aware that very few people are aware of the usage of binary code.

Although these classifications are not exclusive they do offer relevant insight. I could go on but as I was writing this, I became more and more sure that I am a Geek, although I do have a few nerdy features. I mainly obsess over TV shows such as Sherlock, Doctor Who and Supernatural, I have written copious amounts of fan fiction associated with each  and I collect more memorabilia than my bank account can handle. I once had a conversation with myself only using quotes from these three shows, and if you dare say anything bad against them I am likely to get very, very angry.

If you are confused about whether you are a Geek or a Nerd then my consulting hours are between 10 and 12 on weekends :)