Expertise:  I can answer any question about the movies, and many about the games and the expanded universe. I can answer a few questions about the books, the exception being very complicated ones. I am still a very good thinker, though.

Experience in the area
I am a huge Star Wars fan and I study it daily. I have answered hundreds of Star Wars questions that people ask me. I play a lot of Star Wars video games, so I can answer questions about that. I have all of the movies (including the cartoon series) and I watch them over and over to get the details. My nickname is "The Star Wars Freak" because I probably know more about Star Wars than anyone else in my city.