As a bit of fun on my FB page, I created a convenient flow-chart to determine if I'm flirting with you. After a bit of feedback, I made a few alternate versions, enough to suit everyone I'd hope.
I included source files so that people can make their own remixed versions.
Original version (my criteria)
Version to allow for aliens
Version for all living things
Catch-all (simplest) version
They were created using draw.ui, which is where the source files would be used.