What does the lazer pointer do on happy pets?

I don't get what the toy does, its a lazor pointer. But i don't get what im supposed to do with it?
Helppp me please.

It moves the cats so you can fill the food bowls, clean the box, etc… if they are sitting in the way. In cats in Happy Pets are supposed to be like real cats in that they will chase the laser pointer across the screen like a real cat would chase a laser across the room.