I still think of walling as not just a mundane work activity but a bit of a spectator sport, especially in a setting like this where it is supposed to be a walling demonstration. I think of it as something of a performance, as if I were playing an instrument.
For those few people who do stop to ask questions, I always take a break from working (playing?) and give them a full rundown on what dry stone walling is all about and explain what I am doing. I have got it down to a pretty good 'spiel' now. I call it my 'Rockinspiel'.