First of all, try to bulge your mouth like blowing bubbles for ten seconds; Try to pucker up again and hold on for 10 second. Can reduce the fat on the face. Second, look up slowly, look at the sky, open your mouth and send it up with the tip of your tongue 10 second; Retract your tongue, close your mouth, slowly lower your head, and repeat 10 times to reduce mandibular hypertrophy. Third, the mouth is slightly open, and the jaw moves left and right, repeating for 30 times. Just do it 2-3 times a day.