A discreet plain note is left on the message boards in these places. They're not addressed, or signed, and not large enough to be a nuisance in any way. They are in fact, so small, one would be likely to look it over unless they were looking for it. It's apparent whoever left them expects that the intended recipient will know. It reads in plain script -

I'm ready to talk. Let's meet. You know how to contact me.

_________________