As Buffy is leaving the social services office, she can be heard whistling "Going through the Motions," the opening song from Once More, with Feeling (2001),
While Buffy was invisible she stopped a kid from bullying a girl and this line was cut: "Watch who you bully, kid. She might be the next chosen one."
Buffy tells Dawn that "Xander and Anya are working on it, 'Muldering' out what happened." This is a reference to agent Fox Mulder from The X-Files (1993). "The X-Files" was also referenced by Buffy in season one's The Pack (1997), when Buffy says Giles is "trying to Scully" her, alluding to Mulder's partner, and earlier this season in Life Serial (2001) by Warren and Andrew when discussing the time loop of Jonathan's test for Buffy.
The building meant to be Social Services, is actually the Torrance Community Credit Union.
There is a Seinfeld reference, when Buffy talk about gay stuff between her and willow, she said "not that there is anything wrong with that", quoting the famous Seinfeld episode about a bet.