Its really easy, kids. Put a capo on the 5th fret of your acoustic, and play standard chord shapes. Figuring it out by ear is a breeze...
The intro is just Em shape (at the 5th fret of course, which would be Am) , and a C shape (play around with the D on the G string).
The chorus is made by
A shape,
Am shape,
CMaj shape,
CM7 (lift the F on the B string)
D Shape
A shape
C shape
CM7
then back to the C/Em for the verse. Remember, Capo on 5th!