It's always fun to see some confirmation of the ideas produced in my sometimes (or is that always?) creatively zany mind.
Bad4 just posted a link to an article published in Ladies Home Digest back in 1950 regarding how a young woman can best secure second date with her handsome, young gentleman caller. Noticeable among the 25 items listed that are to be considered post-date, is #23:
23. Did you have a good time - and show it?
I rest my case. Well, not really. But, the fact that this is listed from the female perspective is certainly interesting.