Friday night.
My local astronomy society was hosting a 'Moonwatch' event (I'm a co-founder and also the Vice-Chair)
After my 'What you can expect to see' presentation we all went out to the telescopes, but then cloud rolled in after about half an hour so we went back into the hall and I had to launch into a back-up presentation to entertain the punters.
One woman in particular seemed very engaged, I was getting great eye-contact throughout, and a lot of questions about the subject matter.
We talked afterwards and linked up on facebook on the premise she can find out about future events we do.
Mid to late 30s at a guess (bear in mind I'm in my 50s), lots of dark curly hair, quite trim, maybe a 7, and no ring on the relevant finger - Seems a good possibility.
Guys... If you have any kind of speciality knowledge or interest, become the one who is hosting, or organising, or best of all, out front presenting...
The opportunities will come to YOU.