What happens next?

How to train your rat to do tricks
Rat-proof any rooms.
When you train your rat, you will do this outside of the cage. Make sure the room is rat-proof so you keep your rat safe.
You don't want your rat running off or getting hurt! Close up any exits, remove other animals, and move electrical cords and wires that it could chew on. You should also get rid of any chemicals or substances they could eat.