there are two ways to play the intro, chords, and strings ill show you both ways....

the first way ill show you is the chords

D Dsus G A

there are the chords figure out the strumming your self.

now here are is the tab for the intro

intro:

|-2-2-2-0-2---2-2-2-0-2--3-3-3-2-0--------|
|---------------------------------3-------|
|-----------------------------------------|
|-----------------------------------------|
|-----------------------------------------|
|-----------------------------------------|