Sticking the tongue out is a baby’s very first way of saying “No.” When they’ve had enough milk, they stick out their tongue. The impulse remains in the unconscious mind and becomes a microexpression signifying disgust. (Note that this is different from the conscious, playful or defiant act of sticking out one’s tongue. McMorrow is obviously unaware she’s doing this.) What is she disgusted by? Her subject matter or her own words?