In this episode, Michael's controversial imitation of a Chris Rock routine, Niggas vs. Black People, forces the staff to undergo a racial diversity seminar.
He eventually assigns each staff member an index card with a different race on it, causing tempers to simmer until they snap.
Despite this, it received a 2.7/6 in the Nielsen ratings among people aged 18–49 and garnered 6.0 million viewers overall, losing almost half of its audience from the previous week.
When he delivers a racist impression of an Indian person to Kelly (who is not wearing a card, having missed the activity due to a meeting), she takes offense and slaps him.
Meanwhile, Jim tries to re-up an annual sale that will amount to a quarter of his yearly commission, but he is ultimately undercut by Dwight.
However, during the end of the diversity meeting Pam dozes on his shoulder, leading Jim to conclude that it was nevertheless "not a bad day".
[3] Daniels was also not sure where to use Mindy Kaling on-screen in the series until the point came in this episode's script when Michael needed to be slapped by a minority.
[10] In addition, "Diversity Day", along with the other first-season episodes of The Office, helped NBC score its highest-rated Tuesday night slot since February 1, 2005.
[10] Contrary to the lukewarm response to the pilot, "Diversity Day" earned positive reviews from television critics.
Entertainment Weekly gave the episode positive reviews, stating that: "Think of the toss-off racism of the original, plopped into a PC-gone-wrong showcase that might be entitled The Accidental Bigot.
Club awarded the episode a "B+" and felt that, as the show lost viewers in the first season, the stories got better, and that "Diversity Day" is an excellent example of this "unfortunate trend".