I was basically going to comment along the same lines in regard to "pedal feel" and "standing." Other than our non-bike-related chitter-chatter, I rarely call out anything else unless I happen to see a bump in the road or something out of the ordinary. We've been tandeming for 35+ years, and for whatever reason my wife (stoker) has been a natural on the bike since day one. She just has a very good feel for when I shift, brake, stop/start pedaling, etc., etc. I would suppose that it's perfectly okay to come up with a list of instructions for a stoker who's never ridden a tandem before, but I guess I've never felt the need to do so myself.