What does it mean if a guy rests his head on your shoulder?

Anonymous
Long story short, I don't know the guy very well so we aren't really that close to be touchy. He came to my birthday party and I've met him at a couple of other events. Anyway, at the time it was quite late but he hadn't had any drinks as he was driving. This one girl who was in the room with us left and the minute she did, he put his head on my shoulder and rested it there for a long time. When the girl came back, he lifted his head back up again (and no they aren't dating)

What does it mean when a guy puts his head on your shoulder, when you aren't that close? He has tired getting me alone a couple of times, suggesting that we go to his place, talk and eat crisps.
What does it mean if a guy rests his head on your shoulder?
2 Opinion