First, let the Teddy learn to squat quietly in front of you. Before training, give the "sit" command and order the Teddy dog to sit in front of you. During the initial training, it is best to let the dog wear a collar. After ordering the dog to sit down, the owner can also squat down.
Then after the Teddy dog sits down and stabilizes, you can gently scratch its left front foot with your hands. This is mainly to stimulate the Teddy dog to stretch out its front paws. When Teddy's left front foot naturally lifts, the owner can take the opportunity to hold the dog's front foot and say "shake hands" to it.
After shaking hands, you can gently put down the dog's front paws, and at the same time issue the command "put it down" and order the Teddy dog to sit quietly. If the dog can successfully complete these trainings, parents should praise it unceremoniously, encourage it, and slowly guide Teddy to form a habit.
To train Teddy to shake hands, you must insist on it, three times a day, and give snacks as a reward after each handshake is completed, so that Teddy knows that there will be food when shaking hands, so that it will be very cooperative.