Adding the hand in white board animation videos

The main aim concerning white board animations is to showcase the development of a concept or a story through traditional and raw methods. And therefore, it is necessary to incorporate human hands within the video, without it the video is going to appear empty. As an animation maker online, another aspect to keep in mind is the human hand is what makes the video content a white board video. What do you personally think about adding hands in white board animation videos, can you mention a few examples?