Buster is blowing Lucille's smoke out onto the balcony. The last time he does that his glasses are on. Then you see Lucille putting out the cigarette and Buster comes back from the balcony, but now his glasses are on the floor and he puts them back on.
Referring to Kitty's axing of Maeby's project, the narrator says "Maeby's was one of the bodies that was buried"; it should be "were".