I'm not sure this is right, but it's the way I play it and it dosen't sound bad.

Chords (intro)

G|--------------------7-7-----------------------|x3
D|----------------------------------------------|
A|-------7--5-4-3-------------------------------|
E|---5------------------------------------------|

Once the verse starts you don't do anything, you can clap during the chorus.

At around 1:32 in the song (I'm using the time from the album Words & Music) the chords 
again.
It's the same as the intro, only play it x2 though.

After the chords again you can clap or something.

Outro:

G|--------------------------------7-7---------------|Fade out until song ends
D|--------------------------------------------------|
A|--------7-7-7------7---5-4-3----------------------|
E|----5-----------5---------------------------------|

There it is, I hope it helps anyone trying to learn this song.
Again, I'm sure if it's right, I think might have missed something during the verses, 
it was hardly noticeable.