Behaviour is arguably Pet Shop Boys' best album -- rivaled by the one that followed it, Very -- so it's appropriate that it's paired with the best "further listening" component available in the reissue series. This is certainly a byproduct of the duo's high creativity between 1990-1991, but it's also a smartly selected, sharply assembled album in its own merit, containing several of the group's very best non-LP songs -- "It Must Be Obvious," "Miserablism," "Bet She's Not Your Girlfriend," and the anthemic "DJ Culture" -- which are sequenced between many fine extended mixes, including one of "Where the Streets Have No Name"/"I Can't Take My Eyes Off You." Several of these mixes are for songs not on the album as well ("We All Feel Better in the Dark," "Was It Worth It?," and "Music for Boys"), which give the record additional value, since these are different versions than those on Alternative. But even if you have that record, the richness and very flow of this installment of "further listening" makes this expanded edition perhaps the most essential of all the 2001 PSB reissues. ~ Stephen Thomas Erlewine, All Music Guide