I was wondering: the most basic request is to delivery items for a villager and to get them fruit and sign petitions or to go over to each other's place to hang out. But my question is, do they only ask you things like changing catchphrase or greetings and such if you have a decent friendship level with them? I just notice that the more I become friends with a villager the more they send me random stuff and ping me for a conversation that doesn't involve them moving away!