How to bail off

Yesterday I rode Hershey, and I had fun! We practiced obstacles, trotting, and backing. I did a lesson with two other people. We practiced the emergency bail off, it hurt! But it was fun! We started by having our horses walk by a tarp, then we would swing our leg over, jump off, and roll away from the horse. We practiced that a lot and my riding instructor said I did it right because I got a bruise on my shoulder. I asked how I did it right, she said it was because I got a bruise and  not a broken bone! And we even rode bare back when we did it, it was so fun!