I can hear you smiling.

Concept art of the Cheshire Cat as he appears in American McGee's Alice.

Do you have those moments when you're talking on the phone to someone and you're perhaps sharing a humorous story or a touching moment and you can almost hear them smiling?

Yeah, I don't either. You can't hear a smile.

Or can you?

gizzen – to grin audibly. (C. Clough Robinson's Glossary of Words Pertaining to the Dialect of Mid-Yorkshire, 1876)

The most famous audible grin is that of the Cheshire Cat of Lewis ...