Idk about you but what i realized with Hermione is she is very observent while i was watching the movie. In the 5th one with his hand when Harry got back from Umbridge when he collapsed she was the only one to notice. The seventh when he tapped into Voldemort's thoughts and she was worried and he snapped and she made him take off the horcrux. Idk i was like she knew that wasnt harry snapping. I was laughed and was like only Hermione would know that. I thought thats cool.