Actually, when I play and sing the song for real, I use the capo on the 2nd fret (without, it's very hard to sing for me). But the song doesn't need it.
Chords are weird, I can't name them but play like this:
Intro, Verses and chorus: Esus (x79900), Asus (x0990x), C#sus (9x9900), Bsus (7x9900), Bsus (7x9800)
Chorus: Asus2, C#sus (x46600), Bsus (x24400)
Strumming pattern:
1 - D UU / D UUD DU
2 - D UU / D UU DUDU