When I was listneing to pod cast program broadcast by BBC, I happned to hear the words "Plastic Smile".
The words, which have been spoken by English novelist Hilary Mantel, illustrated English princess Catherine "Kate" Elizabeth.
The sense of the words caught me, and made me think of something.
A person who is forced to face a lot of people, has to put on a special mask - which gurads him or her from all of the external noise, gossip, and curious eyes.
Although princess Kate's smile might be a bit cold for oridnary people, it seems charming enough for me.