I don't usually count steps, but I almost always notice whether the number of them is odd or even because steps are usually so small that I take them two at a time.
I have this habit of using my parking brake to help make sharp turns, especially when I'm going 70 on the highway when I get to the turnoff.
When I was really young, I had the habit of having to do on the other side whatever was just done on the one side.
I also have a habit of speaking in an odd accent when I'm thinking.
Oh, and just so you know, I also often flatten out the top of my rice, potatos, beans, and other stuff like that.