Pinch the area of the face around the nose, and bunch together the clay. Form this raised collection of clay on the face into a triangle, taller than it is wide. This triangle should have a pointed tip that sticks out away from the face, forming a prism.
Round the pointed tip that sticks out away from the face, by pushing down on the tip gently with your thumb. As it is, this shape should look somewhat noselike, but you still need to give the nose nostrils.
Pinch the nose on the right side by placing your right thumb under the bottom of the nose and your pointer finger on the right side of the nose. Push your thumb up into the clay, forming a hole on the bottom right side of the nose. This is the right nostril. Round the edge of the nostril by gently pushing on the lip of the nostril with your finger.
Pinch the nose on the left side by placing your left thumb under the bottom of the nose, and your pointer finger on the left side of the nose. Push your thumb up into the clay, forming a hole on the bottom left side of the nose. This is the left nostril. Round the edge of the nostril by gently pushing on the lip of the nostril with your finger.
Shape the nose as desired. For a narrow nose, pinch the tip and the bridge a few times. For a wide nose, flatten the tip and the bridge of the nose by pushing down on the tip an the bridge with your thumb.