Based on the given excerpt above from "Once in a Lifetime" by Jhumpa Lahiri, the part in which it is written using second-person point of view is this: Mainly they were winter items, things you would no longer need in India. When we say second person of view, the author uses pronouns to tell the story of another character. Hope this answer helps.
I would definitely say B.) A smile because if you were just staring it may be rude or distracting to the speaker and a smile shows you are listening and absorbing the knowledge
