Björk originally recorded "You've been flirting again" on the Bahamas but she was dissapointed with the result. Nelleh Hooper gave her freedom to remake the song completely on her own. When Björk added strings for two other "Post"-songs, "Hyperballad" and "Isobel", she wrote a string-arrangement for this song, during the players' 45 minutes lunch-break on a grand piano. Björk has claimed "You've been flirting again" is the "Post"-song she's proudest over, since it's her first string arrangement. "It feels like I've passed a maths-test".