What is "moues"

Usage examples of "moues".

A striped, tawny cat sat on one of her knees, while a gray bird fluttered at her finger and she made playful pecking moues at it.

And the night-fillies flanking them pouted and made moues at them, and they were fairly catapulted into the midst of a pavilion of wine-dark silk, beyond whose unstirring folds showed the flat black horizons of the Shadowland.

His mouth turned down in one of those sad-sack moues, and he said with boyish hurt, "Methought you favored the longhouse now 'tis nigh complete.