When you look at your feet or somebody's feet, one looks biiger than the other?

Probably because the liver is on one side, heart is on the other side and likewise parts of the body is not symmetrical. Similarly, if you look at the mirror, one side of the face looks better than the other side. May be these imbalance have a bearing on the feet and that is why it looks one bigger than the other.

Our body is asymmetrical. Legs are not equal in strength and density. Uneven structure of the body makes us walk unevenly. Hence when it comes to feet, one looks bigger than the other. Visibly, the difference is not seen quickly. Take a tracing paper and with pencil copy the shape of foot on paper and hold the picture face to face, you will see marginal difference.

nope i never noticed this