Time to jump into some classic vamping on this tune! This one features some repeated backup patterns styled after Earl's playing. If you see a dot above the notes that means you need to play the note short by releasing the finger pressure in your fret hand. Release just enough to deaden the note after sounding it and let your fingers remain in contact with the string.
If you see an x that means your finger will touch the string but never add enough pressure to get the note to sound and you pick the string to get a percussive, "dead" sound. You can check out our "Up the Neck Backup" lesson series to dig into some more advanced backup techniques such as these.