This entire song is made up of barre chords, meaning that you are going to use your pointer finger to press down all of the notes, or barre the notes, at the base of the chord. You’ll notice in the chord charts below the instructional video there is a black line are the chart of each chord. This is the barre.
You will also notice that when I am strumming I don’t play the notes of the chord with each strum, and instead you’ll hear a muted sound. In these instances, I am using the palm of my strumming hand and loosing the grip on my playing hand in combination to mute the strings.
Pro Tip:
Use the side of your finger, the hard bony part, to get a cleaner sound out of your barre chords.