An INSTANT Fix For A Common Finger Mistake

What sets fingerstyle guitar apart from other types of guitar playing is,of course, playing with the fingers of the right hand (rather than with a pick). Over the years. I've noticed that if you're likely to make a mistake with your fingers it's going to be that your thumb is in the way of your index finger. This causes a entire cascade of bad results: you can't play loudly, you can't get a good follow-through motion, and therefore your technique suffers and you can't play more advanced material. 

But don't worry! I have a very, very simple fix to this which will instantly cure you of this common problem – if you can do this simple exercise, you will instantly be playing with the right finger separation: