To learn 許冠傑 - 紙船 chords, focus on the sequence of these chords: Bm, C, F, Bb, C, Dm, Gm, C, F and Am. I suggest starting at a calm pace of 53 BPM, and as you gain confidence, approach the song's BPM of 106. Given the song's key of Bb Major, adjust the capo to align with your vocal range and chord preference.