An ancient Chinese proverb states: “The faintest writing is stronger than the strongest memory.
Unless you have a photographic or phonographic memory, be prepared to take notes on pertinent information or advice given. Don’t make him repeat names, locations, or statistics just because you couldn’t be bothered to write them down.
Taking notes is a show of respect. It also means you need to be told something only once and he can rely on you to know it.