>>20431005I'll give you a more serious answer OP.
It could have something to do with a higher level of cortisol, which can mean you have a higher base-level of anxiety, maybe even some kind of minor OCD or Cluster-C Personality Disorder. You may also have pre-hypertension, so a slightly higher than normal blood pressure level. Running your hands together is just a coping mechanism.
I do it a lot when I get excited, or if one of my OCD rituals is getting triggered.
