It's always annoying when the article doesn't define exactly what qualifies as "idle chit chat" and what qualifies as "deep discussion". How about gossip? Is it

It's always annoying when the article doesn't define exactly what qualifies as "idle chit chat" and what qualifies as "deep discussion". How about gossip? Is it in a category of it's own or does it fall in "idle chit chat" because I know plenty of happy people that just gossip.