I can't smile on command like that...I always look like a complete goof.
(Well, more than usual. lol)
A chick will ask for a pic, then inevitably whinge about "OMG, you're so handsome, but why don't you ever smile?"
I once told a girl who said that I'm not smiling because I was talking to her. She was not amused.
I, on the other hand, thought it was hilarious & laughed heartily. Maybe I shoulda taken a pic of me smiling & laughing to show her?