If you go in to this knowing he knows how to beat the game, you'll also note that he reacts before he knows what prize he got, and is just reacting to landing o

If you go in to this knowing he knows how to beat the game, you'll also note that he reacts before he knows what prize he got, and is just reacting to landing on the right spot. Surely someone caught that in the moment, but couldn't have put together that he was celebrating because he knew he'd won.