One getting messages by word of mouth?

• One who can see what you're saying
• One needs to watch what one says
• Editorial about current priest and interpreter
• Expert in facial recognition?
• One sees dialogue of Pale Rider cast
• Deaf person, often
• Handy person to track conversations behind windows
• Person interpreting from mouth movements

Wiktionary Word definitions in Wiktionary
n. Someone who is able to tell what a person is saying by looking at the motion of the lips (a technique use by the deaf, although it can be learned by the hearing, called lipreading).