Human Behaviour" bears influences from electronica, alternative rock and alternative dance. The melody-line of "Human Behaviour" was originally called "Murder for Two" and written by Björk for the Sugarcubes' final album "Stick Around for Joy". However, the band didn't know what music to play to the melody-line, so Björk used it for her debut album.
The percussion intro is a mix between African and Asian rhythms and contains a sample from "Go down dying" by Brazilian artist Antonio Carlos Jobim.
The song opens with sounds of drums and snapping, during the second verse a bass is heard. Björk sings the bridge accompanied by strings. The song continues with a keyboard solo and finishes as Björk sings "There's definitely, definitely, definitely no logic/Human..."
In the album version, as the song fades out, the second track "Crying" begins.