The intro harmonics are 12th fret on the B then G string and the 7th fret on the D then G string

Chords
  Em    G     D     Cadd9 Em7
|-0-----3-----2-----3-----0-----|
|-0-----3-----3-----3-----3-----|
|-0-----0-----2-----0-----0-----|
|-2-----0-----0-----2-----0-----|
|-2-----2-----------3-----2-----|
|-0-----3-----------------------|

Intro Chords
Em - G - D - Cadd9

Verse Chords (Play them all with the 1st string open)
Em - Em7 - G - D Cadd9

Chorus Chords
Em - G - D - Cadd9

Bridge Chords
E5 - F#5 - G5 - A5 - E5 - F#5 - G5 - D5