How old are you? I don't think there are many college girls on those sites. Might be fine for 30+, but I don't know any hot girls, my age or especially younger that are on dating sites.
I remember someone doing a test on dating sites. Any hot girl gets over 100 messages per day. So if you're wanting to get her attention, you're going to need some sort of attention grabbing headline. "Hey" or "Wanna see my cock?" wouldn't cut it.
I think the odds are pretty bad though. Especially if you're used to going out. Maybe if you're one of the PU students that still mostly hangs out alone, at home, it might make more sense. But even then "Facebook game" probably still makes more sense.
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Quote:
Build an emotional connection through your hard throbbing cock.
Build trust and comfort by holding their hands and covertly rubbing your elbows on their nipples.
RSDTyler