Hey, guys.
I just accepted a couple friend requests and suddenly noticed something: I have way more HBs on LinkedIn than I have on FB. A lot more of the fiend requests I send on LinkedIn get a positive response over facebook. Hell, a lot of girls even have their phone numbers on their LinkedIn profile. It's like girls expect to be hit on on FB and have some sort of digital bitch shield (bitch firewall?

)
And it's not just quantity, it's also quality. On facebook you get party girls, ghetto booty, model wannabes and other "disposable" girls. On LinkedIn you find people with college degrees and a solid career, or at least the ambition to get one, which is good if you are looking for someone for the long run.
Now the bad part, LinkedIn is a professional network, not social. How do you go about aproaching and opening on that kind of thing? Has anyone done it? Any tips?
Thanks