Watch the Open Three online guitar lesson by Brad Carlton from Chord Studies: Open String Chords Vol. 2
This is a 6/8 feel progression where we are just going from a I to a V chord in the key of E. The open strings incorporated here really give the progression a nice lush sound. In our first E chord you'll notice we've got three open strings ringing. Next we move into the B7sus4 which keeps the same strings ringing. A good tip is to try hammering on the chords once you've got them down to help really get them in your muscle memory.