Move your jaw as if you're chewing, but keep your lips closed. Then, open your lips wide and hold for a few seconds.
Push your bottom jaw out to raise your lower lip as far as possible. Hold for a few seconds then repeat.
Sit with your back straight, lean your head back, and blow air into your lips. Repeat a few times.
Tilt your head back, stare at the ceiling, and puff your lips as if you're kissing it. Hold for a few seconds, then repeat.
Create a fish face by sucking in your cheeks and lips, holding for a few seconds, and repeat the process.
Puff out your cheeks and transfer air from one side to the other, repeating a few times.
Perform a circular motion of rolling your neck clockwise and counterclockwise.