People
He that has eyes to see and ears to hear may convince himself that no mortal can keep a secret. If his lips are silent, he chatters with his fingertips; betrayal oozes out of him at every pore.
— Sigmund Freud
Behind the line May contain spoilers.
Our reading
An editorial interpretation.
The claim here is that anyone paying attention can tell that people can't really keep secrets. Even when someone stays quiet, their fingers give them away, and betrayal seeps out through every pore. It expresses the viewpoint that the body speaks when the mouth won't.
Context reviewed