How to eat chicken wings and chicken legs with a knife and fork?

For chicken wings, fork a knife at the other end, cut it vertically to the bone, and then pick it off horizontally. The same is true for chicken legs, except that you can just pick the meat from the chicken legs at first, and then use this method near the bones.

Even if foreigners eat these with knives and forks, they can't eat them cleanly. In fact, foreigners usually eat these by hand.