Is this something new nowadays?
I'm not asking for guys too because I know they'll do it (but not all of them) the instant they find an attractive girl.
Shouldn't people start flirting after they know the person a little bit, like maybe 1 week?
I have noticed that most girls when they see a guy they're attracted to, they'll try to flirt as soon a s possible (even if it's just a stranger on the street).