The Bridge Language Connects Japanese and English

The bridge language is a shared language that connects two languages. In our case, the sign language connects japanese in english. So what? How do you make these signs up? What kind of signs or gestures? Well, the easy way is just to use sign language. Just there's already a sign language, ok? There's no no need to create your own. I don't kno if ther 'is a japanese sign language or not. I have no idea.