There is nothing wrong with that.
But I can't think of a single reason to do that in a workplace (correctly), let alone with people you are directly working/involved with. It seems to be careful not to date them. There are tons of people outside (or maybe inside the same company but in different departments you don't deal with).
... there's recent legislation in Manchester, where if you talk to a woman on the street she can just accuse you of sexual harassment ... I guess we're running out of places to meet women we actually want to get to know and heading towards a world where your only 'safe' options are a lifetime porn (or sexbot) or waiting for some woman to choose you whether you like it or not ... not a nice place to be in my opinion but good luck to those aiming for it
Link to the legislation in question? (or maybe news link about it?)
"A police force has become the first in Britain to recognise misogyny as a hate crime ... It also includes ... uninvited verbal contact"
That's now classified as hate crime... while I agree with all other stuff, that little insert there makes a world of difference... it's Nottingham not Manchester, there are undergoing efforts to implement this elsewhere too
* Don't be unattractive
If sex was better accepted across the culture, there wouldn't be a need for these ambiguous games perpetuated by both sides.
I met my current girlfriend, I saw her on the street coming out of the metro, we exchanged eye contact and I walked over, talked, flirted and asked for the number...
We met the same night and she thanked me for coming over to talk to her. She's from France, I'm from Eastern Europe... we'd never meet otherwise and over the last year we experienced the most beautiful thing, that people call love.
In some places, like Manchester, this is now sexual harassment... I feel sorry for the world you live in...