Talking to an npc is pretty plain and simple. I think it would be cool if there were more options like
"what kind of books do you like"
"you look good today"
"you look ugly"
"how's your relationship going?"
"What's your opinion on this person?" (Select person)
"Do you live alone?"
"Can I talk to your husband/wife/roomate?"
"Where do you work?"
"What's your phone number?"
"can you fallow me?"
"can you leave please?"
"what do you do after work?"