If you decide that the three different collections of Thomas Jefferson quotations you stock at the bookstore are woefully inadequate, then special-order yourself the definitive 576 page Quotable Jefferson and eagerly await its arrival, then spend most of the day it's due to arrive repeatedly asking Meaghan, "Is my Jefferson book in there?," "Did you find my Jefferson book yet?" as she unpacks the shipment, then snatch up the book and hug it once it finally appears, then hunker down with it for hours saying "Huh?" and staring blankly at people when they try to talk to you, if you later force another friend to peruse the Jefferson book until she finally pronounces it cool and tells you that all her friends laugh when she tells them she knows someone with a favorite president, and you hear yourself saying, "No no, Thomas Jefferson is my favorite founding father, but FDR is my favorite president" in an effort to correct her, there is absolutely no doubt that you are a nerd.
If you frequently find yourself engaged in debates about whether Thomas Jefferson is cooler than Abraham Lincoln, or opining about how unfortunate it is that Jefferson got stuck on the nickel and Alexander Hamilton, who sucks and wasn't even a president, gets the $10 bill, you are also a nerd. (I know, I know, Hamilton founded the National Bank. I don't care. He still sucks.)
Even if you think Lincoln is cooler than Jefferson, you are probably still a nerd.
If you can name more than five Jefferson biographers off the top of your head, you are most likely a nerd.
If Thomas Jefferson's name evokes Monticello, UVA, the Louisiana Purchase, Sally Hemings, and Paris, you may be a nerd. Or you may just have been raised in Virginia.
If you actually attended Jefferson's UVA, you are probably a nerd. Unfortunately, there's also about a 90% chance that you are a pompous, pretentious collar-popping and/or pearl-wearing jerk.
If your knowledge of Jefferson does not extend beyond an association with the Declaration of Independence, it is doubtful that you are a nerd.
If you believe George Allen when he claims to be a "common sense Jeffersonian conservative," you are not only not a nerd, you are also very stupid.