"Smile,you look better with it."   -Lay

"A woman should smile all the time."   -Chen

"You look pretty with a smile."   -Suho

"Smile like today is the happiest day in your life."   -D.O

"Smile for your own sake."   -Kris

"S.MI.L.E."   -Tao

"Give me a smile!"   -Baekhyun

"Show me your sweetest smile."   -Chanyeol

"Here's a baozi,so smile!"   -Xiumin

"Smile is the best medicine."   -Luhan

"Aigoooo!Smile,my princess."   -Sehun

"Smile because it keeps my heart beating."   -Kai

Smile.Who knows what's behind that fake smile of yours?Who knows what's hidden behind that fake mask of yours?Who knows what's the reason behind that action?Who knows what's that feeling hidden inside your heart?Who knows what happened when they are not looking?Who will know if the feelings are kept to themselves?Who knows...