You may say you can do it, it is easy. But even Japanese can not manage exactly.
First, hold one stick like a pencil. You use your three fingers to hold it. Can you move it smoothly?
Great. Then put another stick in your hand. You see. You just hold it. You don’t need to move this one. You move only upper stick, and the white one doesn’t move.
Very good. You can try ramen, tempura, or takoyaki. You can also try crisps. You don’t need to wash your hand.
There is a training tool. I used it for my son.