Read My Lips
Reading lips is assumed to be a skill that’s easy to acquire. The go-to strategy for hearing people when talking to Deaf and hard of hearing people is to speak louder and to over-enunciate. This can be a mixed bag, as really the only helpful part would be the natural slowing down of speech.
Speech is a rapid, fine motor movement, as this video demonstrates beautifully:
As with so many things, listening to the people who experience this day in and day out is the best way to gain insight and understanding.
For more, see this post on Mental Floss, and you can also read Rachel Kolb’s original essay, Seeing at the Speed of Sound, which inspired the video above.
h/t Swiss Miss