We went to Penne Pomodoro for dinner on Friday night. It was eventful - Katie fed herself macaroni and cheese off of an adult-sized folk and Will got his first refill. He had finished his drink and the waiter asked him if he wanted a refill. Will took it, and I think the idea of the refill sunk in a few minutes later.
Saturday we went to lunch at Banditos. The waiter brought Will his water and Will immediately said "Pretty soon I am going to need a refill." Katie actually finished her water first and Will flagged down the waiter on his own without prompting and said "Can you get Katie a refill?" It was so cute to see him be a such a sweet big brother!