John plays it like this:
Note that strings are re-tuned.
e-----------------------------|
b------4--4--4--4-------------|
f#-----5--5--5--5-------------|
e------2--2--2--2-------------|
b------0--x--4--x-------------|
E---------4-----0-------------|
Another way to play the song that doesn't require retuning is like this:
[ Tab from: http://www.guitaretab.com/j/john-mayer/213257.html ]
e-----------------------------|
b------4--4--4--4-------------|
g------4--4--4--4-------------|
d------4--4--4--4-------------|
a------2--x--6--X-------------|
E---------4-----0-------------|
T
or as I prefer with the last chord changed
e-----------------------------|
b------4--4--4--5-------------|
g------4--4--4--4-------------|
d------4--4--4--4-------------|
a------2--x--6--7-------------|
E---------4-----X-------------|
T