Warning. Don’t try this at home. And if you do keep in mind that double chin can be the result. It is another early flash experiment. The bounce flash gives fairly even lighting. But the image needs some more front light and a catch light for the eyes. Anyway, it seems easy enough to mess up the shot. For all my past subjects, I grimace at the mistakes you had to endure.
If you get it right then you can avoid the unflattering images. But the learning curve is always interesting. My Nikon D70 had a center focus point. It neatly did exactly that and got the bookcase perfectly focused. Later I found the Nikon D200 allowed for closest subject focus. After learning that, the images all focused on the near subject without the annoying out of focus errors.