Might want to add subtleties to prove that you aren't doing what you really are. Some people may want you to show them all sides of the phone or you may want to show your hands empty just as a convincer.
One thing I like to do is the thumb palm. May not be for you but I use that a lot. Definitely a cool app and glad I'm not the only one using it. Just cool that it doesn't look like an app.