Regenerating speed

hey guys what are some good ways to regenerate a yo-yos speed while its sleeping, with out having to bring it back to your hand and re-throwing it? thank you

Another one http://youtu.be/dWhqVz6g6Vg

What if it is a unresponsive yoyo?

It’s the same either way, one just has a tug one a bind. Second vid uses unresponsive too btw.