Listen for chord changes.  for the intro 8 strums for C, Am, and F then 4 for C and G.
mostly hits the top strings and quietly strums down through the rest of the strings.

Capo 2nd

 Intro: C, Am, F, C, G

   C (x32010@1)         Am (x02210@1)     F (133211@1)                   C (x32010@1)G (320003@1)Verse: Pain, don't go, you remind me of a winter storm
       Faith, don't grow, when they say you've been torn

      F (133211@1)        Am (x02210@1)        C (x32010@1)        G (320003@1)Chorus: If I stay, If I stay, If I stay, don't go.

 Instrumental Bridge: C, Am, F, C, G

 Verse 2: Pain, don't go, you remind me of a summer storm
          Faith, don't grow, when they say you've been sore