Simple song, once you get the riffs down, and one of the best CRS7 songs ever written. 
sure there's some room to improvise too, especially on the post-chorus.

Intro (x8)
G|-------------------------------|
D|-------------------------------|
A|-----2-2-4-4---0-0-4-4-2-2-4-4-|
E|-0-0---------4-----------------|

Verse (variation on main riff) (x4)
G|-----------------|
D|-----------------|
A|---2-4---0-4-2-4-|
E|-0-----4---------|

Chorus (x2)
G|-----------------------------|------------------------------|
D|---------------666-6-999-7p6-|---------------666-66---------|
A|-444-44-777-77---------------|-444-44-777-77--------999-7p6-|
E|-----------------------------|------------------------------|

Post-Chorus (x2)(*Take-It-Back!)
G|-------------------|----------------|
D|-------------*-*-*-|----------------|
A|-444-444-444-6h7p6-|-0-0-0-0-222222-|
E|-------------------|----------------|

Bridge
G|---|---|-----|--------------|
D|---|---|-----|--------------|
A|---|---|-----|--------------|
E|-0-|-0-|-0-0-|-0000-2222222-|

I like to end it on A|-7-|, an octave higher.