This is mostly the tab by paramore_fans@yahoo.com, but to make it easier to play,
here it is, not in F#, but in G

Intro: Em-D-G/B-C x2


Verse 1:
Em (022000@1)                D (xx0232@1) The little things, you do to me are
G/B (143121@7)            C (x32010@1) taking me over, i wanna show you
Em (022000@1)         D (xx0232@1) everything inside of me oh
G/B (143121@7)                       C (x32010@1) like a nervous heart that, is crazy beating
Em (022000@1)                     D (xx0232@1) my feet are stuck here, against the pavement
G/B (143121@7)                 C (x32010@1)  i wanna break free, i wanna make it
Em (022000@1)                  D (xx0232@1) closer to your eyes, get your attention
G/B (143121@7)                C (x32010@1) before you pass me by


Chorus:
   G (320003@1)
So back up back up
Dtake (xx0232@1)another chance
          EmDon't (022000@1)you mess up mess up
CI (x32010@1)don't wanna lose you
GWake (320003@1)up wake up 
Dthis (xx0232@1)aint just a thing that you
EmGive (022000@1)up give up 
Cdon't (x32010@1)you say that I'd be
G (320003@1)        DBetter (xx0232@1)off better off
 Em (022000@1)                Csleepin (x32010@1)by myself and wonderin
     G (320003@1)         DIf (xx0232@1)im better off better off
    Em (022000@1)   Gwithout (320003@1)you boy


(Repeat Intro)


Verse 2:
Em (022000@1)             D (xx0232@1) And every time, you notice me by
G/B (143121@7)              C (x32010@1) holdin me closely, and sayin sweet things
Em (022000@1)              D (xx0232@1) i don't believe, that it could be
   G/B (143121@7)                  Cyou (x32010@1)speak in your mind and, sayin the real thing
Em (022000@1)                 D (xx0232@1) my feel broke free, and i am leavin
G/B (143121@7)                   Ci'm (x32010@1)not gonna stand here, feelin lonely but
Em (022000@1)                D (xx0232@1) i don't regret it, and i don't think this
G/B (143121@7)                 C (x32010@1) was just a waste of time


(Repeat Chorus)


Bridge:
            Em (022000@1) D (xx0232@1)G/B (143121@7)  Cdon't (x32010@1)just leave me hanging on
(Repeat)


(Repeat Verse 1)
(Repeat Bridge once)
(Repeat Chorus)