The mice squeak, and then try to demonstrate something.

One runs towards the direction of the mouse, then back. One it runs up to another mouse before the move so they sit some distance apart from another, and shake their heads. One.

One other squeaks and then sits down directly next to another mouse.Then they shake their heads. Two.

Two other mice still squeak and then sit apart from one another roughly half as far away as the first two mice, and nod. Three.