Do girls actually know when they are giving you a generous view of their tits? is it deliberate or accidental? if its deliberate, could this mean shed like to fuck me? i only ask cos there was this hottie that came in my shop, and wrote a note to put on the notice board, all the while showing me down her top. point of note, i do have a missus, and she has a bloke.
There is no universal answer to this. It depends on the girl, on the guy, on the circumstances... Overall, I'd say it is accidental but with exceptions.