Take three slow, deep, full breaths in through your nose and out through your mouth. Relax and fill your belly on each inhalation, then release the breath slowly and let your jaw drop open as you exhale. Keep the out-breath natural like a soft sigh. Release the breath out through your throat, careful not to force it through your lips by blowing or pushing your exhale out. Breathe in and out rhythmically and let whatever wants to happen in your body happen. If your head wants to lean forward, let it. If your hand tightens, let it.