The chords sound nice with some melody on the low strings as well. The bass lick is roughly tabbed below.
Play the C Chord lick when playing C and vice versa.

C Chord       
 e|-----------
 B|-----------
 G|-----------
 D|-----------
 A|-3--------2
 E|------0-3--

             F
--------|     
--------|     
--------|     
--------|     
---0----|     
------3-|     

 Chord
e|------------
B|------------
G|------------
D|----------2-
A|------0-3---
E|-1----------

-------|
-------|
-------|
--0----|
-----3-|
-------|

[Verse 1]

I will wait by

 the river

In the light o

f the moon

At the edge of

 the city

I will wait fo

r you

Though I can't

 wait forever

Someday I'll b

e dead and gon

e

And I won't be

 forgiven
             
For what I've 

      
done


[Hook]

I will wait by

 the river

I will wait by

 the river

I will wait by

 the river

I will wait by

 the river


[Verse 2]

I will cry out

 to heaven

As it rains do

wn on me

I will beg for

 forgiveness

Get down on my

 knees

If I can't cha

nge the weathe

r

Maybe I can ch

ange your mind

If we can't be

 together
             
What's the poi

            
nt of life


[Bridge]

Baby, I didn't

 mean the thin

gs I said

I don't honest

ly wish you we

re dead

I'm a fool; I'

m just a man

If I only coul

d hold you aga

in


[Verse 3]

And the stars 

fill the river

As it flows in

to the sky

And the mind l

eaves the body

And floats hig

her and higher

If we can't be

 together

I will leave t

his world behi

nd

If I can't tou

ch your body
             
Can I touch th

         
e sky?


[Hook]

I will wait by

 the river

I will wait by

 the river

I will wait by

 the river

I will wait by

 the river