All the above is true. Incidentally, according to interpretations of US and CA law, it is OK to do things like (politely) ask a co-worker out on a date. But,

All the above is true. Incidentally, according to interpretations of US and CA law, it is OK to do things like (politely) ask a co-worker out on a date. But, if they say no, you are supposed to get the hint, and if you continue to ask, you're opening yourself up to charges of harassment. From the training I took, my understanding is that if the low-cut dress comment or comments like it was repeated in the presence of a manager, the manager would have to act in some way. (A manager has a duty to not allow a "hostile work environment".) Depending on the specifics of who was at the meeting, it does not matter that the person in the dress didn't mind, because it's not just about conduct a specific person finds unwelcome, it's about a hostile work environment. Some people up-thread are more in the wrong about this than they seem to realize.