Stanford Magazine has a wonderful article by a writer who relies on lip-reading and experiences speech through this subtle movement-based language.
Rachel Kolb skilfully describes how this works, and more importantly, feels.
The part where she describes how she experiences accents is just amazing:
Accents are a visible tang on people’s lips. Witnessing someone with an accent is like taking a sip of clear water only to find it tainted with something else. I startle and leap to attention. As I explore the strange taste, my brain puzzles itself trying to pinpoint exactly what it is and how I should respond. I dive into the unfamiliar contortions of the lips, trying to push my way to some intelligible meaning. Accented words pull against the gravity of my experience; like slime-glossed fish, they wriggle and leap out of my hands. Staring down at my fingers’ muddy residue, my only choice is to shrug and cast out my line again.
The full article is highly recommended. Both fascinating and wonderfully written.