Actually, forwardness in and of itself is not unattractive. I have had many ladies approach Me in a forward manner that I found quite attractive. It is more the method in which the approach was made that defined it either way. You can be quite ladylike and ask Me for a dance (they do), or swagger up to Me and say "Hey, wanna dance?" Of the two approaches, which would you perceive is the most likely to immediately capture My interest?
This is not to say that a woman of, ummm... shall we say, somewhat less than "fully refined" mannerisms is not attractive, it is the manner in which the approach is made that determines it. I have had that same utterance made to Me from this endearingly sweet lass, who very shyly asked it with downcast eyes and a very soft note in her voice -and who immediately enchanted Me into accepting.
As far as the "how's it hanging?" question, speaking from personal experience: yes. Charm School, in My opinion, should indeed be mandated for both sexes, especially in this day and age, as no one seems to be providing instructions anymore on how to properly interact with grace and manners both with the opposite sex and society in general.