I know a couple of people who I wouldn't really deem friends, who persistently do things like in a group conversation at the pub, walk over and start rubbing me or someone else on the back. Or start playing with someone's hair, or put their arm round somebody.
Are you touchy feely? It just makes me seize up, but you can't exactly say, 'ew, get off me you parasite', can you?
or can you...?