If you've tried to do a tea demonstration in a makeshift environment such as a classroom, restaurant / bar / club, school auditorium, (i.e.no tokonoma, no tatami, etc.), you will recognize the challenge to not only to do the presentation (host, guest, narrator) in a way that is visible. Production values aside, one also has to decide what impression through information narrated is most important to relay to the audience exposed to this "experience".
Given the nontraditional environment, I needed to figure out what they might actually see from their position -- seated auditorium style in chairs facing a stage to the side of which a two mat tea "house" had been constructed about 18 inches from the floor. (The "house", all 400 pounds of which was supposed to be lifted on to the stage once the drum set and video screen were moved away. This did not happen, luckily.)
Preparations for the demonstration -- out of my control most of the time -- constantly morphed throughout the evening: the flowers for the tokonoma didn't materialize, the matcha was still unopened 15 minutes before the start, a hotplate was in place under a tiny tetsubin ... Why was this included in the evening, I constantly inquired, but wished to help the event producer fulfill her fantasy. I couldn't help recall the scene in the film Memoirs of a Geisha where the former "Chiyo" does a weird modernist dance at her formal "coming out" performance, emerging as "Sayuri" I mentioned this in my review of the film, "The Way of Tease" for Kyoto Journal.
I determined that the most impressive situation would be to draw the audience's attention into the virtual tearoom space as if one would be a guest. It is pointless to explain every one of the teishu (host's) gestures, because in their role as guest, they are already doing what is necessary: to witness, settle in and wait for tea.
So as narrator I took them on the guest's journey through an imaginary roji, turning this way and that along the stone path, passing through the gates, rinsing at the tsukubai and enter the nijiriguchi. I then simply mentioned that the host is purifying the utensils in the presence of the guest as a way also to draw together their attention and hearts for this gathering.I mentioned other ideas, such as the "Wa, kei, sei and jaku" kakemono (calligraphy) on the scroll displayed in the two "mat" (goza) stage set, which included a tokonoma / tokobashira and shojis designed by East West Teahouse. The demonstration was very abridged inasmuch, too, that the host and guest were new to the practice. I felt the impression was the best under the circumstances.