This person decided to creep out their coworkers. They photocopied their face on the copier and put said photo in the window of a door. Now, it appears as though they’re sleeping with their face smashed against the glass, or something creepier. It’s definitely an optical illusion of sorts. That’s one way to keep people out of your room.
It’s the perfect prank. Oh, to be a fly on the wall. That way we could watch as folks incessantly steered clear of the door or opened it to see if someone was really smashed against the small window. We’d hazard a guess that many office employees would be fooled.