You know you're a nerd when you bring up a Doctor Who reference in every conversation.

You know you're a nerd when your mix CDs contain nothing but openings, endings, and character songs.

you know you are a  nerd when you stay up for more than four nights straight watching an anime / cartoon series.( yes, i have done this)

This one pretty much describes my life right now .  You know you are a nerd when ...

... when the amount of sleep you get each night is determined by how much time it takes you to catch up and post in the unimportant but enjoyable things you do on the internet each evening (things like this forum).

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You know you're a nerd when...

1. you find yourself depicted perfectly in a manga that explores the life of a fan of your fandom...
2. every fandom あるある on the web about your fandom is way too accurate when you think of yourself

I'm doomed :P

You know you're a nerd when you keep using the new emojis on Skype.

You know you're a nerd when you can watch RAW episodes of the ongoing seres because you already know what they're saying.

you know you are a nerd when you watch anime without any subs and you can't even understand it but you watch it anyway and later go  and Google it over the course of a month to try and wring out every bit of info you can...

You know you are a nerd when you join in a giant lightsaber battle in the middle of the movie theater

you know you are a nerd when you take a stick/ crystal/ brooch( or whatever fancy-looking item) and yell out all the transformation phrase you know to try and transform.

sailorpandabear wrote:

you know you are a nerd when you take a stick/ crystal/ brooch( or whatever fancy-looking item) and yell out all the transformation phrase you know to try and transform.

That sounds like one that would also qualify for a YKYWTMMGAW list (You Know You Watch Too Much Magical Girl Anime When ...). 

You know you're a nerd when playing a video game is high on your list of things to acvomplish on a daily basis.