There are parts of my body that I like to stroke or touch, and I'm always stroking or touching one or another of them. Even if I don't look as though I'm doing it, I usually am doing something surreptitiously. They are these: the corners of my eyes, the very top of my head, the skin between my fingers, the skin between my toes, the palms of my hands, the inner side of my elbows, just below my knees, just below my ankle bone.
I also have to twiddle my hair around each of my fingers in turn, placing the strand just right on each finger. I can do this for hours, sometimes, while staring at the ceiling.
I know about stimming - I shake my leg and flick things (I'm expertly resonant when flicking the cover of a book), for example, but I wondered how many people do these kind of sensory stims because they like the sensation at different parts of their bodies.