Have you ever looked at a picture for ... to see the hidden details. Try looking at the image from a distance or squinting your eyes to blend the patterns. A hidden face often has distinguishable ...

Think you’re one of them? Get ready to test your perception, and let’s see if you can spot the elusive face hidden in this puzzling picture! Think you’re up for a real optical illusion IQ test?

Take a close look at this optical illusion drawing and try to spot the face hiding inside the caveman’s picture. It may appear too tricky to find the hidden face, but if you flip the image ...