"Oh all sorts," Steven said, warming up to it. He was after all British and if the puzzle topic hadn't worked he'd have been happy to chat about the weather. "There was a time when I was trying not to fall asleep, you see. So I would try to keep myself awake by doing puzzles and the like. Have you ever seen a Rubik's Cube? Those can be fun, especially if you're the sort of person who prefers having something to do with your hands."