What's your best side to the picture? Right hand or Left hand?

If it is left-handed  is the right side  and f it is right -handed  is the left side

One side face is larger than the other had noticed? Our brain makes when looking at the face sides look the same, but they are not!
The next largest is the one that is prevalent in itself, if it is the right-handed and vice versa, so the short side is what is best for the photo.