you press the green flag to get the animation started, and once the little mint green box shows up on the "you" icon, you press on it. that's pretty much it :D
i used schooltube to copy over the "how the internet works in 5 minutes" example. also, i'm pretty sure no student wants to be looking at their teacher's schooltube account, and no student wants a teacher looking at their instagram either! so i changed it up a bit XD