thumb- E, A and D strings
index- G string 
middle- B string
ring- e string

Standard tuning

e|----------------------------------------2-----------------------|
B|--------3-------------2-------2-------------3---------2h3---3p2-|
G|------------4---------0-------0-------2-------2-------2-----2---|x2
D|------4-------4-------------------0-------------------2-----2---|   
A|--2-----------------------------------------------0-------------|
E|------------------2-------3-------------------------------------|

On the second time he plays the open e string near the end after the &#039;3p2&#039;