[flukus]

This used to be acceptable in many smaller places, even ones with women because it was a much harder burn coming from them. These days you have to just go to work and avoided any sort of socializing or non-work related discussion, keep work life and social life completely segregated and hope that's enough (it isn't always). This is the world political correctness (or professionalism if you prefer) has created.

Best to avoid eye contact too, someone could misinterpret that as flirting.