Was at some "food trucks and beer" in the park thing near my friend's place and they had some of those hot girls in skimpy outfits who hand out like shots of energy drinks or tequila or whatever to promote the brand. Explorative I know, but also free tequila.
Anyway, one was like "holy shit you have the hugest calf muscles" (I work on my feet and do a lot of hiking), and like kept going on about it. "Damn do you run or something? It looks like you have bowling balls strapped to your legs."
And I was a bit like 
I got a mild ego boost from that.
That is something I'm always really careful of. It mostly means I just don't. I'm not the least intimidating guy, and I'm pan so anyone can infer a come-on lol.
On that note, I often don't do it even when it is a come-on, because I don't know when that's appropriate behavior. So no meeting strangers for me, apparently.