Wow, this thread saved my day. I just had to share:
When I brush my teeth, my tongue is constantly touching the toothbrush. Dentists gets quite frustrated when they try to examine my teeth.
I imagine laserbeams going out from all 90°-corners of houses, cars, poles, desks, or whatever, and I can’t step where those imaginary beams are. I’ve done this for as long as I can remember.
I always run in synch with other people, no matter how tall or short they are. My breathing is always in synch with my footsteps. Also, I breathe the same two-bar melody over and over when I run.
I eat raisins by twos, one in each side of the mouth.
I grind melodies with my teeth. There are 5 grind positions, and when the next tone is higher, I take a grindposition more to the right, lower to the left. If there are more than five ascending/descending tones in a row, I start over from the other side of the mouth. Then I try to go back because I want to end the melody where I started.
Additionally, when playing music, I grind back-forth in sixteenth note speed, to help me place dotted-eighths+sixteenths in tempo.
I crack my neck, back, hip and shoulders. Especially the neck and hip has caused people to beg me not to ever do it again, because it sounds load and really horrifying.
When I took long car trips as a kid I invented a ton of games to play. I would in my mind jump between shaded and lit faces on the road, clench my fists in different ways depending on the height of passing cars, stare at the road markings and form patterns, aah I can’t remember everything.
When music is being played I HAVE to beat time with my feet, hands, fingers, anyhing, it has to get OUT of my body.
I contantly play with anything within reach. Pens, phonecords, keys, whatever. I stright out paperclips. If I have two pieces of LEGO I figure out the maximum number of ways to combine them by testing, but after that I desperatly need something new to play with.
I always fold papers once before I throw them, no matter the size.
And, finally, I eat fries in order size, starting with the smallest… but I mix food
I’m laying off more and more of these habits, though…