How does William Armstrong respond when the narrator pokes his head through the posts of the bed to look at him?

When the narrator pokes his head through the posts of the bed to look at William Armstrong, he responds with a mix of surprise and curiOSity. Armstrong's initial reaction is to stare back with an expression that reflects his bewilderment. This moment highlights the tension and complexity of their relationship, emphasizing both the vulnerability and the underlying connection between the two characters.