u can play this without a capo but a capo on 4rd fret is easier. this is all relative to capo 3

e|-----2-0---------2-0---------2-0------------|
B|--------3-2-3-2-3---3-2-3-2-3---3-2-3-2-3---|
G|-------------2-----------2-----------2---0-2|
D|------------------------------------------4-|
A|--------------------------------------------|
E|--------------------------------------------|