If you prefer to strum rather than pick, the chords are G Cadd9 C Cmaj7
Guitar 1 (Carus Thompson)
G C
e|-------------------------|
B|-3-x-3-3/5-x-3-1-x-0-1-x-|
G|-0-x-0-0---x-0-0-x-0-0-x-|
D|-------------------------|
A|-------------------------|
E|-------------------------|
or for a more bass feel:
G C
e|-------------------------|
B|-3-x-3-3/5-x-3-1-x-0-1-x-|
G|-0-x-0-0---x-0-0-x-0-0-x-|
D|-0-x-0-0---x-2-2-x-2-2-x-|
A|-------------------------|
E|-------------------------|
Guitar 2 (Dave Johnson)
e|-------------------------|
B|-------------------------|
G|-------------------------|
D|-5-5-5/7-3-3-------------|
A|-------------------------|
E|-------------------------|
Sometimes he does variations, e.g. at 1:14
e|-------------------------|
B|-------------------------|
G|-------------------------|
D|-5-5-5h7-5-5h7-5---------|
A|-------------------------|
E|-------------------------|