I seem to be the odd one out here. I love talking to someone on the plane, you meet the most fascinating people. For instance on my last long flight I met a doctor from Iraq (he was Iraqi) with the old Saddam Hussein passport. However, if the person doesn't feel like talking, I wouldn't push it. As for the girl sleeping on my shoulder thing. There have been flights where the girl next to me is obviously having a hard time staying awake to keep from falling onto the person next to them. I usually offer my shoulder in these cases since I don't mind and am not expecting anything sexually. If anything, they always talk to you after the flight and you can usually get their number.
