I had to do a brief intro of myself and what I do at one of our theatre board meetings - the Executive Director pretty much just wanted a few minutes of entertainment to liven the meeting up and me being the newbie, as well as an ex-roadie, got to be it. I just did a few sentences describing what I did, accompanied by a couple of stories of unusual situations that I've had to handle that crop up in theatres. I'm not sure what Matt's presentation held - but humor, plus an amusing short story or two, is probably your best bet.
My presentation was interesting - I am an ex-roadie, but I do not at all look like what you'd assume a roadie to look like, so there was a lot of reaction to that. It just goes to show that if you grab their attention with something interesting - its becomes less about what you're doing, but more about you're an interesting person doing it.
-Centaura