Like so many traditional toys, the yo-yo has been popular across cultures for the last 2500 years. It’s had a great history, with a tremendous burgeoning in popularity in the 1920’s and 1960’s, and still it persists. Like jacks and jump-rope, the yo-yo is not as easy as it looks. My own skills are quite sorry in this regard. Fortunately my smallest child has agreed to show us how it’s done.
So, I think the idea is that the moment it touches down, you lift a little bit to encourage it to wind back up. I’ll keep practicing. Maybe one day I’ll be able to do the sleeper, or walk the dog.