As you step into this room you see a reflection you instinctively recognize as your face...despite not having any memories of your own face. 

You turn, to avoid hitting the mirror and see another reflection. Something feels strange.  

You turn again and another reflection. 

You notice this time. Its...smilling.

You feel for your face...your lips are neutral.

You touch the smiling reflection only for it to melt away, revealing a mirroed path ahead.

As you move forward, you can only find progress by finding the biggest smile in the mirror.

Until...finally, a grin stretching painfully across a mockery of your own face... The grin spreads wider, shattering the mirror in front of you without having to touch it.

The door out is behind it.