The last time I spoke at a college was in Arizona, last January. I spoke to a group of undergrads in their bookstore:

In March, I was back on campus, this time in NYC, just blocks from the boat to Ellis Island and the Statue of Liberty, at CUNY (the City University of New York), inside a refitted shipping terminal. Check out the photo below and let me know what differences you can spot.

So yes, THIS audience knew from seltzer. They are part of Quest, a fantastic peer learning community for those 55+. And above (half the room) were a wonderful audience and asked some great questions.