She yoohooed across the park to get her friend's attention, laughing as she waved.

They yoohoo from the mountaintop to let their friends know they're safe.

Yoohoo, could someone tell me where the nearest cafe is?

The forest echoed with distant yoohooings as hikers tried to locate each other in the fog.

From the cliff, she yoohoos to the hikers below whenever someone loses the trail.

Her persistent yoohooing from across the park finally drew our attention.

She spent the afternoon yoohooing across the meadow until the cows looked up in surprise.