This is the main riff played through the song. 
G|--------------------------------------------------------------------------| 
D|--------------------------------------------------------------------------| 
A|-8--555-8--555-5-5-----5-------8-7----------------------------------------| 
E|-------------------7-7---77-77--------------------------------------------| 

He also does this. 
G|--------------------------------------------------------------------------| 
D|--------------------------------------------------------------------------| 
A|-8--555-8--555-5-5-7~-----------------------------------------------------| 
E|--------------------------------------------------------------------------| 

Another variation thrown in towards the end. 
G|--------------------------------------------------------------------------| 
D|--------------------------------------------------------------------------| 
A|-8--555-8--555-5-5-----5--------------------------------------------------| 
E|-------------------7-7---77-77-5-5----------------------------------------| 

Hear something outside.. 
G|---------------------------------------------------------------------------| 
D|---------------------------------------------------------------------------| 
A|---------------------------------------------------------------------------| 
E|-7-7-----------------------------------------------------------------------| 

Into this other part. 
G|---------------------------------------------------------------------------| 
D|---7-----------------------------------------------------------------------| 
A|-7---7-5-------0-5-7h8p7--------------------------------------------------| 
E|---------7-7-7------------------------------------------------------------| 

G|---------------------------------------------------------------------------| 
D|---------------------------------------------------------------------------| 
A|------5------5-7-----------------------------------------------------------| 
E|-7-7---5-7-7-----7-7-------------------------------------------------------|