For instance, I'd open a door to a women and she'd put her best smile and thank me while another one might be offended that I'd treat her specially. (Happens to me from time to time in the metro.) Who's right? I guess both.. it depends of their background.
I always feel there's a blur when working with women between professionalism and amiability. I.e. If I talk with a colleague (man) about his weekend, it's fine. If I have the same conversation with a girl, it'd seem I'm trying to date with her. I don't know, maybe it's just me over-thinking things. What do you think?