When Carrie is stopped at the red/green light, there is a pedestrian in view out her driver's side window. Initially the pedestrian is waiting at the intersection, then the pedestrian is walking toward that intersection, then she is waiting again. When Carrie makes the U-turn, the pedestrian is trying to cross the street.
When Brody is crying, he moves his hand from his forehead to cover his mouth. After a cut, it's back on his forehead.