well put. go one step further, assume the attractive girl in your office wants no parts of you, I mean absolutely nothing to do with you or your advances. I bet in 99.9999% of the time, you'll be correct.That's easy. Go to work and do your job. Friendly but not familiar.
women don't go to work looking for a date or a boyfriend. An attractive woman has a thousand opportunities to meet a guy outside of work, they don't want you or I coming on to them at 9:30am on a Tuesday in the break room. trust me, the chick in A/P doesn't care if you like her haircut, the girl in accounting doesn't care what you think of her boots.