One difference between the two families can be illustrated by examining their homes. The Foster family's home is cold and unwelcoming, while the Tuck family's home is a very warm and welcoming house. The book begins by describing the Foster house as a "touch-me-not" house. It's one of those homes in which everything looks neat and organized, but you are not allowed to touch anything.
Express Inner thoughts. It would be 'Show flashbacks' if it had more detail after "again", but it's Express Inner thoughts because someone is saying their thoughts aloud.