I went on a school trip with my son's class yesterday and they gave one of the storytellers at the venue a marshmallow clap at the end. Basically clapping with out any noise as the hands don't meet. I've also noticed the class I read with doing this, and also a tiny clap with just two fingers. Is there a reason for this? I'm wondering if it's a noise thing (for children with noise sensitivity) or just variety? Didn't get a chance to ask the teacher.