I sit on t's couch. I usually have my notebook and pen in my hands because I take notes. Not that that always is a good thing - one time I threw my pen across the room because I got frustrated. (no, it didn't hit her)

Nowadays, if I'm not holding my notebook, I hold the teddy bear sometimes, or my chunk of rose quartz that I usually bring with me to sessions, or sometimes I grab something off the sand tray shelves to fiddle with. I gesture a lot with my hands when I talk too.