Bend up Full Step - b
Release Bend - r

This Intro is hard to explain trough tabs, but very easy to do if you listen to it 
while trying to learn.  Its a double stop bend in the key of G.  

e------------------|
B-----3------------|
G-----2b-r-0-------|
D------------2-----|  X2
A------------------|
E------------------|

e------------------|
B-------1----------|
G---0-1-2----------|
D-------2----------|  
A------------------|
E------------------|