See the image for "instructions."

It gets easier to work these keys, when you have something to work with.

Until then, you can plan, and make "dry runs," & etc.

Having sent this little marital aid to some old-married acquaintances as a cheap Christmas present, among other less-cheap stuff, not one word was ever mentioned to the Sender about this handly little device. Now why would that be? The image itself was printed and nicely hand-cut out, then pasted on to a thick cardstock, for easier use. No "point & click" here, just "point & show." That's it. Rather easy. The message on each button is plain enough. How could anyone object? Really!