Describe the conversation between Frannie and the new boy about where he might have learned to sign.

Frannie suggests that it was someone he knew before being adopted. He says that it could have been and then says that he remembers, but at the same time he doesn't remember at all. He says that must sound crazy. Frannie, recalling her own lack of memories about the commercial that began the tradition of talking about "Mr. Hungry," understands.