what is revealed about justine's character in these chapters?

think she is kind and cares about the family she serves. She is also unequipped to defend herself. She is passive and scared. Although Elizabeth stands up for her, Justine can't convince anybody of substance about her innocence.

The minute attention paid to Justine's appearance, history, and speech only serves to heighten the sympathy felt by the reader. Her impassive countenance recalls that of a fragile doll: like a doll, she is a mere plaything, a pawn whose fate is entirely beyond her control.