I am not known to give second looks. Well I rarely give first ones to begin with, and many are on men to see if they are dressed well (95% are not).
However, one thing I do on occasion, when I see someone who is very aesthetically pleasing, is to establish eye contact, and once a certain implicit mutual agreement of "you look good" occurs, I would smile lightly and charmingly, which is generally reciprocated. And then I go back on my merry way.
Yea, sounds like a commercial but that does legitimately happen.
I think most people appreciate an ego boost, so long as it is done respectfully and not in an objectifying way.
Although I was once on the receiving end of creepy. I was waiting for the metro, and this girl on the opposite side waved at me. I didn't think it was for me, as I didn't know her, so I ignored. Then she blew a kiss, which made me raise an eyebrow and actually turn my head to see if there is someone behind me, which there wasn't. And then when her train came, she got in and from behind the window she stuck her tongue out suggestively while looking at me. At that point, while I found it a bit creepy, I also found it amusing, so I looked back and smirked almost derisively, which somehow led to her being timid all of a sudden, averting eye contact for a few seconds.
I swear that is a true story.
