All people use lip reading more than they realize. When I worked in a shipyard we used to hate dealing with new people because it was like they were deaf. When you first come to work there the sounds overwhelm you. after a while though you get used to it and can "hear" people talking to you again. you realize eventually that you are using lip-reading to "hear" what is being said because you can still hear pretty well even with earplugs in. You take what you CAN hear and fill in the gaps with lip reading. You only notice this when you are dealing with new people or when you are trying to talk to someone with a mask on. I used to be able to sign some. That is a fairly useful thing to know for several reasons.