e|-------------------------3-6-3-------------------------|
b|---------------------3-6-------6-3---------------------|
g|---------------3-5-6---------------6-5-3---------------|
D|-----------3-5---------------------------5-3-----------|
A|-----3-4-5-----------------------------------5-4-3-----|
E|-3-6-----------------------------------------------6-3-|
   1 4 1 2 3 1 3 1 3 4 1 4 1 4 1 4 1 4 3 1 3 1 3 2 1 4 1  (finger used)

Keep playin it faster and faster and then move up a few keys each time e.g A

e|-------------------------5-8-5-------------------------|
b|---------------------5-8-------8-5---------------------|
g|---------------5-7-8---------------8-7-5---------------|
D|-----------5-7---------------------------7-5-----------|
A|-----5-6-7-----------------------------------7-6-5-----|
E|-5-8-----------------------------------------------8-5-|
   1 4 1 2 3 1 3 1 3 4 1 4 1 4 1 4 1 4 3 1 3 1 3 2 1 4 1
And so on..