Sure, actors’ performances are important and all, but everyone knows Oscar campaigns are often made or broken on the talk-show circuit. Starting today we’ll be analyzing the nominees’ promotional appearances to figure out who’s helping and who’s hurting themselves while seated on the couch. First up, Best Actress nominee Gabourey Sidibe. The rookie’s been killing it on the circuit, so we went back to study game tape from her appearance on Jimmy Fallon last month. Check out Sidibe’s “freakish natural giggliness” on display in Vulture’s Wide World of Oscar.