Let It teach you how to Smile

Are you a guy who don't like to take photo because you can't smile properly.Ya, I also have the same problem as you guys. Fortunately, it's a solvable problem. Simply stick this piece of rubber in your mouth that forces you to smile, and in a matter of days you're sure to have a smile that won't be so revolting to those around you. Although, I don't know whether this Japanese product useful or not, however hopefully I can get it at Malaysia hehe^_^