In this hypothetical example are you walking over and saying good morning to each of your male coworkers as well?
The point is, treat your coworkers the same, regardless of gender.
The point is, treat your coworkers the same, regardless of gender.
The rule of thumb is sort of in line with telling a risque joke. Is that ever OK in a workplace? Sure, but if there's any doubt whatsoever how it will be received by the audience then you probably shouldn't be doing it.