Think you have a sharp eye for detail? Here’s a fun way to test it. Two side-by-side images show a girl walking a goat, and while they look nearly identical at first glance, they’re hiding three subtle differences. Your challenge: find all three in under 30 seconds. It’s harder than it sounds because our brains tend to overlook small changes and fill in the blanks based on what we expect to see.

Common mistakes include focusing only on the center or assuming details are the same because they’re similar. Now, let’s reveal the three differences. First, the girl’s headband: it’s solid in the left image but striped in the right.