Social signals aren't real-time light-beams that someone has to be there to witness; they make up our likes and interests and who we are.

Let's say you are in a museum alone, some of the works presented can resonate and excite you more than the others, but you can't share your excitement with anyone. Where is the social signaling element gone then?

Lets say: Two months later I'll be at a dinner party and over a bowl of Caldo Verde I'll recount an anecdote about the Paul Manship sculpture that I saw that time in the museum on my own, and how it was placed in relation to the other works.