I was just looking at one of the screenshots on the main site where two main characters were engaged in a dialogue between themselves and had something like "Contempt +1" and "some other stat +1" floating above their heads.
In the game I've noticed that upon doing some deed (e.g. stealing or finishing a quest) both of my characters acquire exclamation marks above their heads. Upon interaction with one another a small conversation strikes up, however by the end of it the protagonists do not receive any personality points, whether they agree with each other on the subject or not.
I do know that, when talking to others, the replies award various personality points. But I have also expected the same outcome in private conversations.
Am I just missing something or are some of these conversations meant to have no effect on the stats?