The thought strikes me about how we look when we retreat within ourselves. The facade may be totally deceiving.

I'm thinking of a music party of one kind or another. Have you looked at the photos of the Mudcat Getaway? Surrounded by and steeped in music has to be one of the happiest times one could have. BUT did you notice how many people in those photos look bored, sleepy, grumpy? Inside, we may be smiley-happy but you'd never guess it from the outside.

Maybe it's kind of like that on a subway or a city street. We forget our faces on the outside, and live INside.