Okay this is my first submission and it's by ear; the chords are pretty accurate 
but I personally don't find that they sound nice strummed. I recommend you 
fingerpick the chords in whatever way you like :)

So Basically it's a Capo on 3: and the chords are G, 8-7-0-0-8-8, (relative to the 
Capo [this is basically a G moved up {for the sake of this, let's call it GU}]) 
Cadd9, A/F# those are the chords for the whole song basically.


For the intro:

E-8--------------|
A---------7------|
D----0-----------|
G------------0---|


that's the fingerpicking pattern for the whole song...E string, D string, A string, then G string

with that same fingerpicking you'll play: G CADD9 A/F# and the GU thing again.
_________________________________________________________________________________________

G
Neighbor boy..

             Cadd9
Saw the light glow from your window, through the rain 

                                  A/F#          G
and through the haze across the yard.


               Cadd9
Though I already have known you.

                                                        A/F#       G            A/F#
I can?t wait I?ve got to find you out ? who you are. (who you are)


GU            G      A/F#  D
(uuh-uuh-uuh-uuh-uuh)



*(Same as above)*
Neighbor boy..
So funny and so sweet ?
you?re the joy inside my smile, and the confidence behind my beauty.
I saw you standing in the yard -
you saw me standing by the backdoor, waiting for you.
If you only knew,
how much I need you.


A/F#                            GU
(ooooooh) I will stay forever.
 

         A/F#
I will make your town my own,


                                                       GU
this town in which you?ve grown into a man.

                   G
You became my bestfriend.

      A/F#      Em
On an afternoon in the sun.

        Cadd9
On a Saturday like no other,

                                                 G
we fell in love with each other ? for good.

A/F#
And then you said..



*(Same chords as the very first verse)*
Neighbor girl..
So come on darling lets get married,
and we?ll live our liver together ? across the way.
You?ll be the princess of my castle.
with the flowers for the crown upon ? your head.


A/F#                            GU
(ooooooh) I will stay forever.


         A/F#
I will make your town my own,


                                                       GU
this town in which you?ve grown into a man.