to overlook.
There is also another psychological trick at work: expectation.
The image itself says:
“I see 9…”
That statement can influence the way someone approaches the puzzle. Once you see the number 9, you may unconsciously look for nine obvious birds rather than questioning whether there are additional birds hidden within the groups.
This is one reason visual puzzles are so popular on social media. They create a simple challenge that encourages people to stop, look again, and compare their answer with everyone else’s.
Look Carefully Before You Answer
