When you are doing a sleeper throw, you do a trapeze. Facing the front. Then, you make the loop as big as possible, longer than the string connecting to your middle finger. Then, you lower the loop hand (you might wanna pinch the string), so it starts to snag like in jayyo’s quick wind. Then it will come back up. That is how you do it.
If you wanna do it like andre’s video, just do a breakaway throw, then do it from a braintwister. Do what i say. Yep.