This song can be quite confusing. I hope this will help you out. 

C/g means: C-chord with a G in the bass, listen to this song for the strumming and 
you will understand.

intro

C/g C/g F/F C/e | C/e C/g C/g C/e 
C/e Am/a F/F C/c | C/g C/e C/e Am/a 

In the verses the second C/g chord switches to a C/c chord:

C/g C/c F/F C/e | C/e C/g C/g C/e 
C/e Am/a F/F C/c | C/g C/e C/e Am/a 

When 'and you clutched, kicking heels' starts it goes slightly different,
but I can't really figure it out. I think it's like this: 

C/g F/F F/F Am/a | C/g F/f# F/F F/F 
C/e C/e C/e C/e  | Repeat intro

If someone has better suggestions for the kicking heels-part, let me know :)

A tip: play the intro over and over again so the "infinite strumming" thing gets in your system.