You Know You're a Nerd When...

-when you thought all of the stuff people have posted on this link was the "cool" stuff that everyone does...
-when you constantly are screaming about being a nerd and proud in random places throughout your day, not caring about the strange looks you are getting

Similarly, you might be a trekkie when you refer to your wife as "Number 1" and your daughters as "1 0f 3", "2 of 3", and "3 of 3" by birth order. (No, not me. My dad.)
EDIT: Another very clear indicator is twhen the text sound on his phone is the computer from TNG saying "Priority One message coming in on secure channel."

(LOLZ XD)

"You know you're a nerd when..."
...you like math class.

'You know you're a nerd when...'
...you don't walk around saying you're a nerd.

hey i am pretty much all of that, except i am not a trekkie nor do i know any trekkies

You know you're a nerd when you are to the point of not needing to look up whether or not computer parts are compatible with each other.

'You know you're a need when...'
...You know the names, types and general usefulness of all 648 Pokemon.

You know you're a nerd when your mom asks you the meaning of a word, cause she realized LONG AGO that you're useful at that kind of stuff. >u<

EDIT: In other words, that I am a nerd. XD

You know your a nerd when you can follow inception after seeing it only once.
Took me three times, but i still claim nerddom

You know you're a nerd when the teacher has to ask you what a word you used when you talked to her means. -_- Happened with my french teacher

You know your a nerd when you can coreect the teacher on a shakespeare quote from the top of your head on the fly.

Or when you have an Ipad on standby.

You know you're a nerd when you are correcting your English teacher's paper for grammar.

You know your a nerd when you can do math faster than someone with a calculator and get it right more often

When you make spreadsheets in your spare time, and then brag about your spreadsheets to random strangers.

When you're discussing who'd win in a fight: Huckleberry Hound or Droopy