I have the come-hither-nutter magnet on my head, too. And being polite by nature, never manage to tell em to get lost.
Apart from once: four-hour coach journey, and young man stops to ask if I'd mind if he sat next to me.
I said 'sorry but yes, I would. The coach is practically empty and I'd rather have the spare seat next to me'.
I got a Look.
Sadly, it is one of my proudest moments