What's On The Other Side?

I'm not sure why this anecdote came to mind today, but while it's here, I guess I'll write it up. See, some time ago I was asked to give a short icebreaker of some kind at a large staff meeting. It started out as a half-hour intro, got cut to fifteen minutes, then squeezed down to a five-minute quickie. And I think what I ended up doing probably was better than a half-hour would have been! So this is what happened . . .
( Long Version under the curtain . . . )

I still have a card in my wallet, and I know that several other people who were at that meeting still carry their cards. And more than once, I've thought that five minute lesson might very well be one of the best I've ever given.

What's on the other side of the sheet?