Play this part pretty softly. 

E --------------------- 
B ---------------1-1-3-3------- 
G ---2-2-2-2-2--2-2----------  x3 
D ---2-2-2-2-2------------------ 
A ------------------------- 
E ------------------------- 

And this too. 

E ------------------------- 
B ----------------1-3------ 
G ---2-2-2-2-2--2---------- 
D ---2-2-2-2-2-------------     x9 
A ------------------------- 
E -------------------------            
  
Now start to play loud and ad the open A string. 

E ---------------------------- 
B --------------1-3------------- 
G ---2-2-2-2-2-2-------------------- 
D ---2-2-2-2-2---------------------    x11 
A ---0-0-0-0-0--------------------- 
E ----------------------------