You have to listen to the song carefully to know when to play what,
put its pretty random

RIFF#1
G:------------------------:
D:--------0---------------:
A:-2020202-20202----------:
E:---------------0-122----:

RIFF#2
G:-------------------:
D:-------------------:
A:-20202----20202----:
E:-------------------:

RIFF#3
G:----------------------------------:
D:----------------------------------:
A:-222222200-0000-----------0--0----:
E:---------------33-333322-2-2------:

Listen to the song to see where to play it. its a really good song so try it out.