Obviously this is an acoustic rendition and isn't the way Justin plays it, but 
sometimes you just can't be bothered to retune. This is for those occasions.

I play with the Capo on the 4th fret with standard tuning. Obviously change the 
capo position depending on your voice if needed.
Strum pattern is very simple. If you're a beginner and are having some problems 
then I'd recommend persevering and listening to the song over and over 
(fortunately it's a great song!). 
If you become dependent on strum patterns then you won't develop your ear or rhythmic abilities.

Any questions, appraisals or death threats then write to Josh_Turner6@msn.com

By the way, check out Anna Scouten's cover. 'tis incredible! 
http://www.youtube.com/watch?v=FuwfDZlJ0bI

Hope it's correct and you all enjoy my first ever tab!

These are the chord positions used:
Em7      - (022033)
Dsus4    - (xx0233)
Cadd9    - (x32033)
G (320003@1)      - (320033)
Dsus4/F# - (2x0233)

Remember - Capo on the 4th!

Em7                        Dsus4Well (xx0233@1)I met you at the blood bank
        Cadd9We (x32030@1)were looking at the bags
             Em7                Dsus4Wondering (xx0233@1)if any of the colours
                   Cadd9 (x32030@1)            
Matched any of the names we knew on the tags
               GYou (320003@1)said: "see look that's yours"
           Dsus4/F#     
Stacked on top with your brothers
             Em7                
See how they resemble one another?
              Cadd9 (x32030@1)            
Even in their plastic little covers
           Cadd9 (x32030@1)         Em7    Dsus4And (xx0233@1)I said I...... know it well........

G (320003@1)    
That secret that you know
               Dsus4/F#               
That you don't know how to tell
   G (320003@1)
It f**ks with your honour
       Dsus4/F#
And it teases your head
        Em7         
But you know that it's good girl
           Cadd9 (x32030@1)       
'cause its running you with red.

Em7                   Dsus4Then (xx0233@1)the snow started falling
        Cadd9We (x32030@1)were stuck out in your car
         Em7                    Dsus4You (xx0233@1)were rubbing both my hands
        Cadd9Chewing (x32030@1)on a candy bar
                      GYou (320003@1)said: "ain't this just like the present"
      Dsus4/F#
To be showing up like this
          Em7
There's a moon waning crescent
   Cadd9
We started to kiss
           Cadd9 (x32030@1)         Em7    Dsus4And (xx0233@1)I said I...... know it well........

GThat (320003@1)secret that we know
              Dsus4/F#
That we don't know how to tell
        GI'm (320003@1)in love with your honour
       Dsus4/F#
I'm in love with your cheeks
            Em7
What's that noise up the stairs babe?
        Cadd9Is (x32030@1)that Christmas morning?

Cadd9 (x32030@1)         Em7    Dsus4And (xx0233@1)I...... know it well........ (Repeat and fade 'til heart's content)