Their ears were pointed, and perked at every sound.

With his ears perked, he was looking intently down into the yard.

It was almost as if her human ears perked forward.

Decker's ears perked up and he listened with new interest.

Then his ears perked and he gave a low, angry growl.

William's ears perked right up when I told him about those tools.

His ears perked forward as they came to a stop before the even more massive Blacks.

His head remained raised, his ears perked, long after the door had closed behind them.

Brewster's ears perked up and he stopped on the trail.

The warrior's ears perked up and he turned, as if seeing her for the first time.