Pinched harmonics are achieved by letting some of the skin of your picking hand touch to the guitar string during or immediately after picking. I personally feel it's easier to pinch harmonics using my index finger but others prefer using the thumb. You'll have to explore a little to find the best spot where pinching a harmonic is most likely to occur. Be warned, pinching harmonics is addictive. Once you find that sweet spot you will most likely make your guitar squeal for days while you perfect the technique.
I am a beginner- I learned more in a week of using Guitar Tricks than I did in two weeks of apps that listen to you play. The instructions are excellent- well presented and easy to understand. My 12 year old and I are learning together- me on a nylon string acoustic and him on an electric and the lessons are well suited to both of us. The only thing that keeps me from putting a 5 is that the app could use options for some of the things available on the full website such as the tools and being able to mark lessons as complete. It would also be a great feature if the music sheets would scroll down with the songs as they are played - songs that are copyrighted can’t be printed which means it is impossible to play along without memorizing the song.
There are many people out there who doubt that they have the ability to play guitar, so let me tell you right away: your hands aren’t too big or too small, you’re not too young or too old, and it doesn’t matter if you want to play electric or acoustic. Everyone has their own challenges, but I’m confident that if you practice and put your mind to it, you can play the guitar.
Very helpful. After two weeks I am already playing a few tunes. I'm 54 and just starting guitar after playing bass for years. glad it doesn't assume anything. Great introduction to the guitar. I am only a few lessons in, but love the explanations and diagrams. song selection is also good. The spirl bound version makes the book stay flat on the music stand; definitively the way to go.