It depends. Sometimes I talk to myself to try to calm myself down. Other times, I give in to whatever I'm afraid I need to do. It might involve going to a certain place, talking to certain people, cleaning things, or any of several small habits carried to the extreme. Other times, I try to involve other senses to get my mind off of it. I might hit myself, scream, scratch, or intentionally wet my pants (if I'm alone) just to get my mind to focus on more pleasant things and stop thinking about it.
The pants wetting thing is a weird habit that I guess I don't want to talk about. It's certainly not something I would like to share with anyone who knows me, but it is a way to get another kind of stimulation other than the anxiety. I do have trouble concentrating on fear when I'm dealing with other parts of my body, but this particular habit usually elicits guilt, and that, in turn, leads to more anxiety, eventually. I do at least feel relief temporarily.