People always think that they know a lot about dogs, but if you really want to know how to detect if your dog is a Jack Chi, you need to take a closer look at their behavior. To do this, the first thing you should do is observe your dog's behavior. You can do this by watching how your dog interacts with other people and pets. You can also observe your dog's reactions when you ask him or her to do things. You can observe your dog's behavior for several days and see if you can detect any changes in his or her personality. This way, you'll be able to tell if your dog is a Jack Chi or not.