This is how Savannah Outen plays Smile by Charlie Chaplin on her youtube channel
you can listen her version here http://www.youtube.com/watch?v=JUKcZv57jd4

This is my first tab, i hope everything is ok =)

Capo: 7th

G   320033
Em7 022033
C9  032033
D   000232
Dm  000132
Am  001220
Gm  335543

G 
Smile, though your heart is aching
Em7
Smile, even though it's breaking
C9                           D
When there are clouds in the sky
           Dm
You'll get by...

Am
If you smile

With your fear and sorrow
Gm
Smile and maybe tomorrow
G           C9                 D
You'll find that life is still worthwhile 
               G
if you'll just...


Light up your face with gladness
Em7
Hide every trace of sadness
C9                 D           Dm
Although a tear may be ever so near
       Am               
That's the time you must keep on trying
Gm                       
Smile, what's the use of crying
G                C9                   D
You'll find that life is still worthwhile

If you'll just...

G
Smile, though your heart is aching
Em7
Smile, even though it's breaking
C9                           D
When there are clouds in the sky
           Dm
You'll get by...


Am
If you smile

With your fear and sorrow
Gm
Smile and maybe tomorrow
G           C9                 D
You'll find that life is still worthwhile 
               G
if you'll just... Smile

Break: G - Em7 - C9 - D - Dm

       Am                           Stop
That's the time you must keep on trying
Gm                        Stop
Smile, what's the use of crying
G                C9                   D
You'll find that life is still worthwhile
                    G
If you'll just Smile

End: Em7 - C9 - D - G