Plan ahead and include choices in your video for students to make as they watch. Then using the spotlight annotation, send them to other videos or to another spot in the current video to get instant feed back. This video will wall you through everything you need to know to make your videos interactive.
While we work so hard to make our classes interactive, why do people make flipclass videos that passive? Create your own choose-your-own-adventure videos using you-tube annotations to give your students instant feedback.