No messages are screened for content. Drink all liquids through a straw. You'll be dribbling all over yourself for a few days, but it does help the muscles around the mouth. Curl upper lip up and raise and protrude upper lip. Try to touch nose.
Compress lips together.
Shift air from one cheek to the other. Smile without showing teeth, then smile showing teeth. Try moving your lips into a smile slowly. Then pucker slowly trying to use equal strength from both sides. Draw angle of mouth upward so as to deepen furrow from side of nose to side of mouth.