how I use my thumb-rocker switch

A student was asking about some ergonomic issues, so I thought I'd post a little demo of how I hold the stylus for my Wacom tablet, and specifically how I use the rocker-switch for the second and third buttons.

Note the way the side of my thumb rests lightly against the switch at all times. I press the forward button by putting a tiny amount of pressure on the tip of the thumb, and I press the other one by putting some pressure on the knuckle. Click, click, click, it's easy!