Intro
e|---------------------|
-|--1---1---1---1------|
-|----0---0---0---0----|
-|---------------------|
-|---------------------|
E|--1-------3----------|
Repeat the above a good few times using finger picking
(a thumb comes in handy for the A note).
Rest of song:
Most of the song just alternates between an A and a G.
For the two tense "breaks" in the song, fiddle with an C#m like so:
e-3--2
B-1--1
G-0--0
D-2--2
A-0--0
E-x--x
Alternate between the two chords above for these breaks.
And then you get to the "Me myself again" bit where the chords go:
C, A, C, F, G, F
And then back to A and G.
Things to try/note:
Try leaving the B string open during ALL the chords in the song.