So I had to give a "demonstration" in a speech class at my university and I chose wet-shaving. All I did was show different razors, brushes and soaps, and I demonstrated how to build a lather. I couldn't bring razor blades to school, so I fudged it a bit and made a plastic "faux-blade," and then "shaved" a balloon. I talked about the frugality of it, the superior shaves and of course the technique. I gave a little history, and a little reasoning to why a safety razor could be better for skin.
I didn't get many questions because this class is very... uhmmm... unenthusiastic, to say the least.

But one of the young ladies in the class asked me if I actually shaved that way.
The most interesting thing was that one guy actually came up to me
after the class and told me that he "actually shave(d) that way." My instructor was impressed though, and really liked looking over my "gear."