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Face There are many muscles in the face, but concentrate only on the eyes and jaws. Open the eyes and mouth as much as possible, until the forehead wrinkles. Close your eyes as possible and tighten your jaws; relax them. * Breathing Make an aspiration as deep as possible by keeping air in the lungs; Expel the air. Expel all the air off until the Lungs empty; take air and breathe normally. BACK Backing the shoulders against the ground, push the trunk forward in order to arch the whole back.