Jun 16, - Method 2. Do Facial Exercises. Chew gum. The repetitive chewing motion will help strengthen your jaw. Do the "X-O" exercise. Profoundly pronounce "X-O" at least fifteen times. Do the jaw opener. Do the cheek lift. Make "fish lips." Make puffy cheeks. Make puffy cheeks with pursed lips. Smile. Aug 18, - Some people notice weight gain in their face before they notice it anywhere else. Unfortunately, you cannot get rid of big fat cheeks without.