He disliked very much being waited on by a deaf waiter when first he came to the inn.

He said he didn't want to have to bellow out when he wanted anything.

But when he found that I could understand lip language, and could follow what he was saying by watching his lips, he allowed me to wait on him, but he gave me strict instructions never to take my eyes off him when I was waiting on him, because he disliked having to repeat an order." At the request of Sir Henry, Superintendent Galloway asked the waiter if he had noticed anything peculiar in the actions of the murdered man's guest during the dinner.

The waiter replied that he had not noticed the young gentleman particularly.

So far as his observation went the young gentleman had acted just like an ordinary young gentleman, and he had noticed nothing strange or eccentric about him.
Mr.Cromering decided to occupy the remaining time at his disposal by questioning Ann.