Teaching a Chihuahua to roll over isn't much different than training any other dog to roll over. It is not an extremely easy trick for most dogs because they don't enjoy having their bellies exposed. But once your Chihuahua knows how to roll over, you can add this to the pile of fun and cute tricks to show others and to use when you are socializing your Chihuahua.
With strong personalities and close attachments with their owners, Chihuahuas often have a reputation for being stubborn. But in reality, their personalities are sweet and fun. They are protective of their owners and have a big bark for little dogs. When you train your Chihuahua to do fun tricks like roll over, it will help keep the hierarchy alive in your house and give you tools to help your Chihuahua grow social around other people as well.
Training your Chihuahua the 'roll over' trick puts him in a position where he is submissive to you and to anyone who asks him to roll over. This submissive gesture also teaches your Chihuahua who is the leader of your pack. The first step of getting your Chihuahua to learn how to roll over is getting him to expose his tummy to you. So practice this first before you move on to the actual trick. Have your Chihuahua show his tummy. Be sure to give him a treat each time you can get him to show his tummy. Then move on to more fun and have your Chihuahua show his tummy and give him a tickle. Next, have your pup show his tummy and give him a nice rub. Turn tummy exposure into a game before you begin practicing this trick. Once he can show you his tummy without anxiety, begin training your Chihuahua to roll over.
To get started teaching your Chihuahua to roll over, you're going to need lots of tasty treats. These treats should be high-value treats that aren't used for basic obedience commands. Give them in very small cuts. Your Chihuahua will enjoy cheese or hot dogs or even dried liver. Be sure to have a lot of these treats on hand for your Chihuahua to earn. Learning more advanced tricks such as 'roll over' will be easier for your Chihuahua if he knows the basic obedience commands first.