When Grams walks in from the kitchen to sit on the couch, she sits on the end cushion across from Jack, who's sitting on the other end. In the very next shot, Grams is sitting in the middle, right next to Jack.
When Joey is talking to Jack Osbourne in the dorm room, her arms change position depending on whether the camera is focused on her or Jack. When the camera is focused on Joey, her hands are on her hips. When the camera is focused on Jack, Joey's back is to the camera, but her arms being crossed can still be seen. Her arms change position, from arms crossed to hands on hips, each time the camera's coverage changes without her having moved them.