There is a device that you can attach to your refrigerator called the “Happiness Counter”.

Basically, the device will scan your face to detect a smile. Smiling at the device will unlock the yummy yums in your fridge.

Source: g-mark.org
The Happiness Counter was developed at the the University of Tokyo. It was created because smiling contributes to mental well-being. It makes smiling a part of daily life especially to those who live alone.
The girl’s face is like,”Oh no you didn’t, Happiness Counter!”

This gif shows the Happiness Counter at work:

Why won’t this fridge budge?!

Solution: SMILE!

Just look at that smile 🙂

Keep on smiling! 🙂

Source: Gigazine