I use it mainly as a dhv thing, quite efficient
Humble bragging is an art, and it works wonders on FB ("Got cast as an extra for a promo video thing while chilling at Starbucks. I might stop being so handsome if it means I can't even finish my coffee."), post a bit of a comment everytime you go out, or do something cool
Second option is "feeling stuff", describe something with the "feel language", they love that. Like recently: "Greatest pleasure of having your own apartment is sitting with a cup of coffee at your open window, looking at the sky, smelling the rain, and listening to the incoming storm."
Every single female contact liked that sh!t.
I don't believe in seducing a girl through facebook, but you can improve your social image dramatically, which then helps when you go out in your "territory"