Well i don't have a pic but your holding the punch dagger style in your less dominant hand and striking the punch handle with your throwing hand. You just slide down the punch handle until the heel of your hand is pressing down on the point, hard. I've even seen people stand on larger dovetail like spear points while they are striking the punch.
You also could just stem the point at the base for a wrapping. When you stem (make about 1/4 of the length of the point narrower at the base) you use the width reduction to set up more pressure platforms to thin the base as well. You need to get the base thin so the hafting doesn't stick out like blob.
That is a good looking point, the edges are clean and sharp. And it is sturdy, more like a dart point. But that would be better in our more modern system that a real small thin point.