I'm not sure if this qualifies, but when telling someone the time I always give the exact minute.
I make little explosion noises under my breath when I turn lights on or off.
When I'm getting undressed, I MUST take my shirt, pants, and socks off in such a way that they don't turn inside out. I can't just pull my shirt off, I have to pull from the neck area so it stays right side out.
If I'm eating M&Ms or something similar, I keep a rough mental count of how many I'm chewing on one side and then try to have the same amount on the other side of my mouth. So if I grab three M&Ms and chew them on the left, I'll then chew three on the right (or four, and then one more on the left). Or I'll divide the number in half in my mouth and send each half to one side.
I also talk to myself when I'm home alone, about weird stuff too. I make comments to characters in tv shows and ask things like "why did they do that" or "what do they think is going to happen" when nobody is in the room with me. I actually make a lot of random comments to the air when watching movies/playing games.
Me too. Maybe that's why I'm kinda comfortable here at ATOT?
Mine is "purse, keys, phone". I have to be holding all three in that order and touching the door knob before I close the door. If I forget to lock the door - and I always go back to check - I have to do the thing over again.