Update: I went with this
"Hey, ____ told me to check out the girl in your profile picture and I must admit, she is pretty cute. Do you think that you could see if she's up for drinks sometime? Just don't tell her I asked ok?"
Within 5 mins of sending that I got this response, along with a friend request
"I left her a message for you - she would've answered but she was busy hunting down someone named "me" on Facebook......

"
Thinking about replying with something like "Woa there, I don't go adding just anyone to my list of friends. Maybe if you tell me a little bit about you, we'll see if you make the grade..."
I'm pretty surprised at the quick response to the message I sent, but she didn't comment on getting drinks...hmm, any thoughts?