I capo the 3rd and play for the Intro, Em, C, D, G and for the Verse, G, D, Em, C. Honestly the capo on the 2nd, 3rd, or 4th sounds good with that chord progression.
Brian has his capo on the 4th cause he plays a half step down. Capo on the 3rd if your guitar is in standard and the chords I hear are Am F (in the modified C chord fashion) C and G Every chord is played with your pointer finger on the first fret of the B string.
