In the first scene the dad gives his son some fresh coffee. On the grill you can see a coffeepot. This suggests that this coffeepot has been used to cook the coffee. However, it is clear that the tripod and grill have not been used, because they are still shiny, not black as you would expect.
When Kyle and Fiona are playing rummy, Kyle does not gather all the played cards before shuffling and dealing the stack.
When Myrtle casts a spell over Quentin and Cecily aka Pembi, those two characters are transfixed, unable to move. However, throughout the take, as the camera moves from one to the other as Myrtle talks, Pemi's eyes are at a different level a number of times.
Delphine sings "Dixie" to distract herself from being forced to watch "Roots." However "Dixie" was not written until the late 1850s, while Delphine was buried since 1834.
Hank calls Cordelia by Misty's name. Misty is also in the shot, but Hank is clearly talking to Cordelia directly.