You can’t judge a book by its cover.
Faces give us a sense of familiarity. A sense that we *know* someone.
But really knowing someone always goes beyond; far beyond to what’s behind the obvious; deeper into their heart and their minds; knowledge which can really only come from interaction and communion.
And sometimes interaction and communion happen without a face, especially in our current day on-line world. Then we become both nervous and excited for the chance to meet the face behind the avatar.