Ever wonder why Japanese women cover their mouths when they laugh?In Japan, a small and dainty mouth, known as ochobo, is considered attractive. Opening it wide is considered unattractive. So what’s a girl to do who just wants to take a bite out of a big, juicy burger? Cover your mouth with a picture of a dainty, closed mouth of course. Sales of a new burger with a “liberation wrapper” is taking off as Japanese women now eat like the rest of us gluttons.