If you're totally mystified by some of what's in Prinz Eugene's post, but *really* wanna learn how to do some of it (particularly assembling the radio and using found rocks or whatnot), you might be a nerd/geek or at least a wanna-be! *guilty*
If you watch an ep of The Big Bang, and you actually follow all or almost all of what the nerd/geek lead characters say, and not only comprehend it, but debate it or add accurate commentary upon it on the commercial break, you might be a nerd/geek. *guilty*
If you watch The Big Bang because you enjoy refreshing your memory on topics such as quantum physics more than you bother with the whole romantic tension subplot, you might be a nerd/geek. *guilty*
If you actually find someone from whom you can learn esoteric information sexier than someone intellectually bland but physically looking like a model, you might be a nerd/geek. *guilty*
If you watch My Name is Earl because you love Jason Lee from Mall Rats and Chasing Amy, you might be a nerd/geek. *guilty*
If someone asks what your favorite scene from Batman is, and yours is from a comic from before you were born or from the original series, you might be an old-school nerd/geek.
If your friend is talking about the rock band, The Who, but you keep giggling because you're thinking of something you saw on Dr. Who, you might be a nerd/geek. If it's from the original series, you might be an old school nerd/geek.
If you were watching the ep of "Chuck vs. Tom Sawyer," involving **spoiler alert!**
the '80s arcade game, Missile Command,
and you were mentally playing along and correcting the moves in the game,
you might be an old school nerd/geek.
If you were watching "Chuck vs. Tom Sawyer," as above, and knew all the lyrics to the titular Rush song, and sang along with it, you might be an old school nerd/geek. *guilty* And if, while doing so, you proudly pointed out that Geddy Lee (singer of Rush) is Jewish, you might be a Jewish old school nerd/geek. *guilty*. Speaking of which, Happy Chanukah (12/21 eve) everyone. Oh and if you ever heard the story of Chanukah, and tried to envision how one might scientifically keep a menorah aflame for 8 days on only one cruze of oil, you might be a Jewish nerd/geek. *guilty*