How to Show the Specific Grips in Jujitsu

When I'm working with people who've never seen grappling, I'd show them what two on one means. And I like to show them the, what call our stereotypical connections. These are places on the body that are very graspable to our eyes. So for beginners, we'll use these stereotypical endpoints, wrist, elbow, shoulders, neck. But there's a process that we're trying to find within gripping like this or moving like this. We say that every structure, every grip, every alignment has both a function and a limit. For example, when I grasp the hold of a neck, what is its function? Why am I grasping a hold of the neck? What's