He's always been the "one take" guy for me. And it's not as easy as it looks--he'll spend 10 minutes wandering seemingly-aimlessly around London, and pass by a certain landmark within 5 seconds of mentioning it in his script (which he also memorized). It's bananas and I don't think many people even consciously notice. That's why he's so happy when he nails it. I think it's cute! https://www.youtube.com/watch?v=hgRRFRaMFcc