Photo by nevermindtheend.

HUMOR: Humorist David Sedaris stops by GW’s Lisner Auditorium. (730 21st Street NW) 8 p.m. $35-50

KARAOKE: Help determine who can best sing their “CASS OFF” at this fundraiser for Collective Action for Safe Spaces, the “grassroots nonprofit focused on ending street harassment and public sexual assault.” Ticket price includes two drinks. iStrategy Labs (Wonderbread Factory) (641 S Street NW) 7-10 p.m. $21.25-29.75

DESSERT: Christina Tosi, Virginia native and founding chef of Milk Bar, talks about her Milk Bar Life in conversation with Todd Kliman. Cookie sampling to follow the discussion. S. Dillon Ripley Center (1100 Jefferson Drive SW) 6:45-8:45 p.m. $30-42