well, you just strum an E chord for a while, then switch to a D, then to G for the intro (listen to the album)

heres how it goes:
(3/4 time)
E, D, G

A, A, A

B, B, B

C, C, F

G, rest rest 

x6

Ending (4/4 time)
e-4-1------------------------------------------------------------------------------------------------------------
b----4-1----------------------------------------------------------------------------------------------------------
g-------4-4-4-3-1------------------------------------------------------------------------------------------------
d----------------3-1------------------3---------------------------------------------------------------------------
a--------------------321321321h333----3---------------------------------------------------------------------------
e---------------------------------3-1-1---------------------------------------------------------------------------