Intro animation for android app

I want to add an introduction "animation" to my application (which has a Navigation Drawer) to "teach" people how to use it (basically how to open the drawer, close it etc)

How can I do it? I want it to be interactive with the app itself: at the beginning I want it to show a "hand" pulling the navdrawer and then it waits until the drawer has been opened, then it performs other stuff. I have seen it in some applications but I don't know what to look for achieve it.

I'll appreciate any kind of help, thanks