I work part-time at an auto parts store. I had a customer last week who was completely deaf. I pulled down my mask (required by my employer) for a second and pointed to my mouth and asked if he read lips. He said, “A little.” I spent the rest of this interaction communicating with this customer by typing messages into the Notes app on my smartphone. But this got me thinking: “How do deaf people communicate when everyone is wearing a mask?” Someone suggested clear or translucent masks that allow a hearing-impaired person to read lips. What are their limitations?