An awesome, and yet suh simple song--U2 style.

Verse:  really soft and mellow, I usually just strum using my thumb
for this part, and somewaht arpeggiate it, alternating between plucking
the E string and strumming the ADG strings and the A and DGB strings,
respectively:

  chord shape shown above tab

       "...promises..."    faster, louder:
  A  D      F# D             A        D
e----------------------------0-0-0-0--2-0-2---and so on--------
B----7------2--7-------------2-2-0-2--3-3-3---------------------
G-6--7------2--7-------------2-2-2-2--2-2-2----------------------
D-7--7------4--7-------------2-2-2-2--0-0-0----------------------
A-7--5------4--5-------------0-0-0-0-----------------------------
E-5-------------------------------------------------------------

Sounds best on acoustic I think. That's all there is to it.  Questions,