This is quite an easy song to play on guitar, though it's originally on piano.
there are a few little notes missing, but I got down the main chords written
above the lyrics and when it says e|-5-3-1- that's the high e string (thin one).
If you need a chord reference to help they're at the bottom.

Intro/fill
|-3----1----5----5-3---
|-3----3----6--------6-
|-3----3----7----------
|-5----3----7----------
|-5----1----5----------
|-3--------------------


Gm      Bb   Dm            F           Gm
   I?ve been watching your world from a far
     Bb   Dm        F            Gm
I?ve been trying to be where you are
     Bb   Dm       F       Gm      Bb    Dm   E|-5-3-1-
I?ve been secretly falling apart unseen


Gm    Bb        Dm                 F         Gm
   To me you?re strange and you?re beautiful
      Bb    Dm           F    
You?d be so perfect with me but you 
Gm         Bb   Dm             F            Gm	      Bb  Dm   E|-5-3-1-
Just can?t see, you turn every head but you don?t see me


C       Bb	    Gm                    
I put a spell on you, you fall asleep when
C       Bb          Gm
I put a spell on you, when I wake you
C           Bb	            F	     Eb     Bb	             C
I?ll be the first thing you see  and you?ll realise that you love me


|-3----1----5----5-3---
|-3----3----6--------6-
|-3----3----7----------
|-5----3----7----------
|-5----1----5----------
|-3--------------------


Gm    Bb        Dm             F             Gm
  Sometimes the last thing you want comes in first
    Bb        Dm              F          Gm
Sometimes the first thing you want never comes
  Bb       Dm         F           Gm     Bb   Dm   E|-5-3-1- 
I know the waiting is all you can do sometimes


C       Bb	    Gm                    
I put a spell on you, you fall asleep when
C       Bb          Gm
I put a spell on you, when I wake you
C           Bb	            F	     Eb     Bb	             C
I?ll be the first thing you see  and you?ll realise that you love me


C       Bb	    Gm                    
I put a spell on you, you fall asleep when
C       Bb          Gm
I put a spell on you, when I wake you
C           Bb	            F	     Eb     Bb	             C
I?ll be the first thing you see  and you?ll realise that you love me


|-3----1----5----5-3---
|-3----3----6--------6-
|-3----3----7----------
|-5----3----7----------
|-5----1----5----------
|-3--------------------

_____________________________________________
Chords

|-3----1----5----1----3----6-
|-3----3----6----1----5----8-
|-3----3----7----2----5----8-
|-5----3----7----3----5----8-
|-5----1----5----3----3----6-
|-3--------------1-----------
 Gm    Bb   Dm   F    C    Eb