Final answer:
The text provided does not reference Scrooge or a gesture related to the song 'Away in a Manger'. In Charles Dickens's 'A Christmas Carol', there is no scene where Scrooge interacts with a boy singing 'Away in a Manger', as it was not written during Dickens's time.
Step-by-step explanation:
The passage provided does not directly reference Scrooge or the gesture he makes when the boy sings “Away in a Manger.” In Charles Dickens's “A Christmas Carol,” Scrooge does not interact with a boy singing “Away in a Manger,” as that Christmas carol was not published until after Dickens's time. The text does not support the claim that Scrooge makes any gestures in response to this particular carol. Therefore, the answer to the student's question, as it relates to Dickens's work, would be that there is no such gesture by Scrooge during “Away in a Manger” in the story since the song does not appear in the narrative. However, the passages provided do not contain this context, and it appears the question may be based on a misunderstanding or a different adaptation of Dickens's classic tale.