Intro Riff:
Key: EMINOR or GMAJOR (In case you wanna solo over it)

E-------7-7-------------------------------------------|
B-------8-8-------8----------12-12----------12--------|
G-------7-7-----7---7--------12-12-------12----12-----|
D---7h9-----7h9-------9---10-------10h12----------10--|
A-----------------------------------------------------|
E-----------------------------------------------------|

E-------5-5-------------------2-2---------------------|
B-------5-5-------5-----------3-3-------3-------------|
G-------5-5-----5---5---------2-2-----2---2-----------|
D---5h7-----5h7-------7---2h4-----2h4-------4---------|
A-----------------------------------------------------|
E-----------------------------------------------------|

After Intro, turn down volume and play the same riff
throughout the song under the lyrics. A nice spin is
to play just the chords, instead of comping over them
with additional hold-ons and use a reggae-style strumming.