Watch this if you're confused about barre chords and when/when not to use them; 
http://www.youtube.com/watch?v=m2NqLBvZS8c
Am & F during the verses, outro of chorus & bridge are played in power/barre chords.  
C is normal throughout. 
Swith between playing with thumb and playing normally.  
Csus4: 033010
[Verse 1]
Am          F           C
Give me something real, something to hold on
Am                          F           C 
Give me something you've got, to make us strong
Am                 F                   C
Ill be waiting, Ill be waiting to come home
Am                 F            C
Ill be saving, Ill be saving what we own
 
         Am       F        C
Look in your eyes for a little while
Am                   F          C
Let me read your mind, if you read mine
         Am                   F                C
Cause I keep falling, Im still falling for your love
        Am         F               C
I keep falling, falling into your world
[Chorus] 
C                      Csus4  C   
With every, love every kiss
   
Am                     G
Every time we touch lips
C                    Csus4  C
My love always his
Am                     G
Every time till we miss
C                    Csus4 C
Every love, every cry
Am                     G
Every time till we die
C                    Csus4 C
Every love every look
         [ch]Am[/chG   C
In your bright blue eyes
[Verse 2] 
          Am            F           C
Its something we cant say, its just the way we feel
Am                 F             C
Well be hiding in secrets, til they reveal
     Am                F                C
Cause I keep falling, Im still falling for your love
            Am        F                C
I keep falling, falling into your world
[Chorus] 
C                      Csus4  C  
With every, love every kiss
   
Am                     G
Every time we touch lips
C                    Csus4  C
My love always his
Am                     G
Every time till we miss
C                    Csus4 C
Every love, every cry
Am                     G
Every time till we die
C                    Csus4 C
Every love every look
         AmG   F
In your bright blue eyes
[Bridge]
Am      G      F
Am      G      F
            Am               G                 F
In your bright, in your bright, in your bright blue eyes
           Am               G                 F
In your bright, in your bright, in your bright blue eyes
            Am               G                 F
In your bright, in your bright, in your bright blue eyes
           Am               G                 F
In your bright, in your bright, in your bright blue eyes
[Outro]
C                      Csus4 C
Every love, every look
         AmG   C
In your bright blue eyes