The great Richard Wiseman calls this the Eyes Open, Eyes Shut Illusion. We like to think of it as a pretty terrifying way to end your week. Get close to your monitor and take a look at this lady.
Doesn’t look like she’s looking at anything, right? Well take a few steps back and squint. BOOM! She’s instantly staring right into the deepest recesses of your soul.
Check out a few more examples on Wiseman’s blog.