time, you right thumb needs to go down and your left index finger needs to come in. once you have it, try switching them back. continue switching them and see how fast you can do it. it won’t happen right away, you have to think about it and work on it.
hold both hands up in front of you. on your right hand, hold up five fingers. on your left hand, hold up two fingers. now, try to switch them so that you have five fingers up on your left hand and only two fingers up on your right hand. once you switch them, switch them back. continue switching them and 