Apparently some teachers "regularly encourage their students to use various gestures and/or body-movements to facilitate understanding and learning of physiological functions, thought concepts or musical ideas"

You could follow this link to one of several academic papers on the subject.

However, maybe you should, as I always do when using a blue clicky here, check were the link will take you. I could be trying to sucker you into visiting an unsafe page, though if doing that I would probably use the name of one of the regular guest users.