Your brain can play illusions - Dragon face follow you move
This is yet another cool illusion your brain can play when you move within a range of angle facing this special dragon designed specifically to fool your brain.
Check this out.
As you can see your brain is a great simulator and it is looking at what is possibly recognizable from earlier facial recollection. So don't scream when you see a ghost, its probably your brain playing tricks on you. Or may be not! ;)