Verse: 
First I'll give you a break down of the key chords. 

   F7M/9  and    D7M/11 
e|---0-------------3-------------------------| 
B|---1-------------1-------------------------| 
G|---0-------------2-------------------------| 
D|---3-------------0-------------------------| 
A|---x-------------x-------------------------| 
E|---x-------------x-------------------------| 

Now here's a breakdown of the picking pattern in the intro/Verse: 
e|-----0-----0--------0-------------------3----3---3p0-----------------------| 
B|--1-----1-------1-------1---1---1----------1---------3---------------------| 
G|-----0-----0------0-------0-------0h2----------2-------2-------------------| 
D|--3-----3-----3-------3-------0-------0------0-----------------------------| 
A|---------------------------------------------------------------------------| 
E|---------------------------------------------------------------------------| 

Chorus:  
This part is basically riffing off a Cmaj and Am. It only happens twice in the song â??  
once in the middle, and again at the end where it sort of melds back into the Fmaj7M/9 chord from the verse.  
I'm not sure I got the picking pattern perfect here, but it's close. 

e|-----0-----0--------------------------0-------0-------------------0-----------0--------0------------| 
B|--1--1--1--1--------1-----1---------1-------1---------1-----------1----1------1----1-----1----------| 
G|--0-----0--------0-----------0--0h2-----2p0---------0--------------------0h2---------2--------------| 
D|-------------0h2-------2------------------------0h2-----2p0-------0h2-------------------------------| 
A|--3---------------------------------------------------------3-0-------------------------------------| 
E|----------------------------------------------------------------------------------------------------| 

Ending (comes right after the last Chorus) 
e|--------------------0---------| 
B|--------1-------1---1---------| 
G|----0---------0-----2---------| 
D|--------------------0---------| 
A|--2---2---2h3-----------------| 
E|------------------------------| 

Hope this helps you out. Remember to keep it loose, and play around with the picking. Sam never plays it the  
same way twice. 

And if I might... 
What I really love about Sam Amidon's playing, and what I try hardest to channel when I'm learning his songs,  
is the way his mind seems to wander through them, as if he's simply sitting on a porch somewhere with you 
after a long night, but good sleep and maybe what you're really doing is waiting for the water to boil.