Wow wow wow. Tahereh Mafi causes such an impression with these books. Juliette is still scared, unsure, and insecure of herself and her surroundings. Her main concern? Being around so many people who she may accidentally harm or even kill. Throughout most of the book, Juliette is too frightened and insecure to do anything. She whines and cries and feel super emotional about every little thing. Which is why Kenji was such a good friend to her in being blunt and telling her to get over herself. Although it is understandable to a point because she basically is barely learning how to interact with people. As for the other characters like Adam, Kenji, and Warner may new things are revealed. I grew to love Warner and start to really dislike Adam. 
 Let's just say so much happens in terms of character development.