This is like that beep when they're in the refrain. 
 
E-0--3--0--5--8--7--3------0--3--8--7--3------------- 
G-0--3--0--5--8--7--3------0--3--8--7--3------------- 
 
 
 
This is how I play it but you can play with only one string if you think that 
looks cooler