It is achieved by the equal distribution of identical or very similar parts on either side of a central axis. Symmetrical balance creates the feelings of stability, and formality. In asymmetrical balance a felt or implied center of gravity brings opposing or dissimilar elements into equilibrium. It is more difficult to achieve, but it is more flexible, subtle, and dynamic than symmetrical balance. Asymmetrical balance directs the viewer's attention towards the right or left of a painting instead of focusing in the center.
People are symmetrical.
Standing straight you could divide yourself in half from the head to your feet and you would be the same on both sides. If you tilted your head to the right the visual and physical weight shifts. Therefore, you have now made yourself asymmetrical by shifting your weight to the right. You are not the same on both sides, the placement of your head changes our visual interpretation of your body to the right. You may discuss your answers with your instructor or with your peers.