"Look at that!"

OOH

It’s the sound you might make when something unexpected catches your eye.

The clue "Look at that!" mimics an excited exclamation someone might say when pointing something out. The answer "OOH" is a simple, natural reaction—like gasping in surprise or admiration—often used in casual speech. It’s a direct sound-based hint where the clue prompts the solver to think of what they’d actually say in that moment. No tricky wordplay here, just a straightforward vocal response.