He pins his ears back when he hears a loud noise.

He pinned his ears back and focused on the task at hand.

I always perk up my ears when I hear my favorite song on the radio.

She needs to pin back her ears and listen to what he's saying.

She can talk the ears off a donkey.

Little pitchers have long ears.

Little pitchers have big ears.

He has his ears pinned back.

She is having her ears pinned back.

She had her ears pinned back.