I think way back, the '20s or the '30s, when Kodak came out...

I think way back, the '20s or the '30s, when Kodak came out with the Brownie and they put a list of instructions on the box, like how to use this thing, I think someone arbitrarily said, 'Make sure the person in the photograph is smiling.' And we went from that one sort of set of industrial instructions to this whole culture of perkiness.