At first glance, Hannah Gadsby’s Woof! feels like a show strung together with seemingly disparate threads, starting with the performer’s entrance on to the stage at the Abrons Arts Center’s Henry Street Settlement Playhouse, where Gadsby, who uses they as a pronoun of choice, opens the show with a statement about whales, of all things. The topics Gadsby covers range from popular culture to sociopolitical commentary to gender-identity politics. A newcomer to the comedian’s work might wonder how Gadsby would eventually tie these thoughts together, but their stand-ups often veer more toward TED Talk territory than a traditional stand-up structure. Still, as Gadsby promises the audience of Woof! at one point, there is a theme to all this.