You can only hope that the best of what you said made it through, and they take it with them. You hope that they remember how much you believed in them, and wanted the best for them, and that some of the lessons stick with them. If you do your job right, they might not stay with you in the dojo, but maybe a little part of you stays with them.
Hojo undo is using what you have to supplement your karate. We’ve come up with 12 exercises you can teach and do using a simple towel.