A curved rock becomes a rock.
A dark patch becomes a shadow.
A line becomes a branch.
To find the hidden face, you need to temporarily suspend that first interpretation.
Ask yourself:
What else could these shapes represent?
That simple question can completely change the way you see the image.
A Simple Step-by-Step Challenge
If you want to test yourself properly, try this:
Step 1: Look normally
Spend about 10 seconds viewing the entire image.
Don’t search too aggressively.
Step 2: Step back
Move away from the screen and look at the composition as a whole.
Step 3: Relax your focus
Stop concentrating on individual objects.
Step 4: Examine the major shapes
Pay particular attention to the large rocks and darker areas around the left and central portions of the image.
Step 5: Imagine a face
Look for the possible forehead, nose, chin, and hat.
Step 6: Change your perspective
Try squinting or briefly turning the image upside down.