Okay, I’ve just got to post, because this thread is really quite fascinating. First off, I don’t have a car runner, but I bet I will soon. Sometimes, when I’m a passenger and I haven’t brought anything to read, I count things. I counted 781 green things on the way to school once.
I chew my lips and jiggle my feet. I scratch my teeth, and click them together. I run my fingers through my hair constantly (I am a Valley Girl, bred from the age of two in the San Fernando Valley, and this scarily typical habit grieves me deeply). I find the prime factorizations of times on clocks and numbers on license plates.
My father “reads” the three-letter combinations of license plates to find words in them. He points them out to me, which is quite annoying.
I have an active fantasy life.
I put my body to sleep when I’m bored, leaving my brain and eyes awake as the rest of my body goes rigid and numb (it feels like a mild dose of novocain). It takes some effort to get it to wake up again, especially my hands.
When I see a word I don’t recognise, I reverse it first, and then look for anagrams. I can write in handwriting both upside down and backwards (mirror-writing a la Leonardo da Vinci) and find that when I’m tired I can’t recall how letters go the right way round.
The “life as a movie” thing is made considerably easier if you provide yourself with some sort of thing–a bracelet, a ring–to act as a camera and divide off the “movie” from the rest of reality. I would look through a bracelet on the school bus, to the annoyance of many of my busmates, one of whom finally grabbed my bracelet and stuffed it down his pants. After that, I decided to use my imagination.
When I’m nervous about a conversation, I rehearse it beforehand, often aloud.
I used to play Tetris in my head when I was bored. Then I played 3D Tetris. Now I play Hoyle’s Gravity Tiles.
I breathe to the beats of songs, and when I’m walking and somebody drives by with a loud stereo, I walk to their beat. I push my glasses up on my nose. I graph equations in my head, then make solids of rotation of them and try to find the volume.
When I’m faced with a decision, I try to diagram it logically and assign variables. I once tried to develop a formula for how long you had to have been friends with a person before it was inappropriate to stop being friends without some kind of falling out.
I tie things in complicated knots.
When I’m looking at something with a pattern of diamonds or checkers, i try to figure out the biggest square that I can visualize superimposed on the pattern without making a mark to record where the square started. That one’s hard to explain, but I bet if anyone else does it, they’ll recognise it.
I can’t think of any more right now, but I’m sure they’re there. I wish I just had a nice car runner and didn’t feel like a weirdo with so many compulsions.