Final answer:
Without additional context from the narrative, it is not possible to provide a specific instance of what surprises Marji and amuses her family from the excerpts given. The excerpts hint at complex social dynamics and familial relationships that could lead to surprising and amusing moments within the narrative.
Step-by-step explanation:
The excerpt provided seems to come from a narrative where Marji is surprised by a turn of events that also amuses her family. However, the specific details of what surprises Marji or why it amuses her family are not included in the provided text.
Therefore, based on this excerpt alone, it is not possible to determine exactly what happens next that surprises Marji and amuses her family without additional context.
From the provided text, we learn about the dynamics between Bernice and Marjorie, and about Bernice's emotional upheaval, Marjorie's offer to pay Bernice to leave early, and a tension-filled scenario involving an unexpected visit or event indicated by honking cars.
It appears that the characters are involved in a complex social situation, which includes issues of family expectation, peer pressure, and social standing, typical to narratives exploring themes of adolescence and coming of age.