Cafuné does mean running your hand through someone’s hair, caressing someone’s scalp. It most certainly does not translate as caffeine. That would be cafeína
James Cagney was one of the greatest film gangsters of all time, as well as a song and dance man. He starred in such classics as "White Heat", "Angels with Dirty Faces", "Yankee Doodle Dandy" and "Public Enemy".