tu mutter nonsense Latin words under your breath.
tu call your least favorito! teacher Snape.
Your computer says "You've Got Mail" and tu run outside looking for an owl.
tu actually ask for a escoba for Christmas.
tu mutter "lumos" under your breath every time tu turn on a flashlight.
tu sort everyone tu meet into the four Hogwarts houses (Gryffindor, Ravenclaw, Hufflepuff and Slytherin).
tu were burned when tu couldn't get through the flames of your fireplace.
tu had to go to the hospital after tu broke your nose running headfirst into the muro between platforms nine and ten.
The wand order mistake in GoF drove tu crazy, and even after it was "corrected" tu still came up with dozens of theories to explain why that happened.
tu point at normal things like parking meters and say "Look at the things these Muggles dream up!"
tu collect plugs.
tu try on every piece of silvery fabric your mom has to see if tu turn invisible.
Before getting up to get something, tu always try to summon it first. Accio TV remote!
tu watched "Love, Actually" because two minor Harry Potter actors were in it.
tu were reduced to tears when tu finally had Book 5 in your hands.
tu refer to your Chemistry class as Potions.
tu spend hours tapping bricks in special orders, hoping that a secret entrance to Diagon Alley will appear.
When playing chess, tu yell orders to the chess players and get upset when they don't move.
tu yell into the "fellytone."
tu get emotional every time tu hear "Hedwig's Theme".
tu say "wicked" all the time because Rupert Grint does.
tu get thoroughly overexcited every time tu see a word somewhere that is distantly linked with HP (ie. Saint Hedwig's).
tu name all of your pets after HP characters.
tu get into heated arguments over how much gel Tom Felton had in his hair in the first two movies.
tu know that Harry's birthday is July 31, 1980, Hermione's birthday is September 19, 1979 and Ron's birthday is March 1, 1980 even though it was never dicho in the books.
tu refer to Voldemort as "You-Know-Who", and no one has any idea who you're talking about.
tu went out and bought the latest editition of the Webster's Dictionary because they added the word "Muggle".
tu were kicked out of the movie theater for standing on your chair, throwing your shoe at the screen and yelling "THAT DIDN'T HAPPEN IN THE BOOK!"
tu count the days until you're old enough for your Apparation license, and everyone else thinks you're talking about driving.
Your free time on the computer is spent constantly refreshing your favorito! Harry Potter news site (MuggleNet, of course), hoping for an update.