The "Professor" Trait?

Any idea what does the trait do? The trait description doesn’t help much.

He teaches other hearthlings, giving them exp when they talk

wow, I see…

By how much? does mood (bad talk/good talk) affect xp gain?

so baically they talk a lot more

The professor trait doesn’t increase the hearthlings’ likeliness to have conversations; it just gives their conversations the side-effect of granting experience to other hearthlings.

The opinionated trait is the one (IIRC) which increases their likelihood to start/seek out conversations.

As far as I can tell it’s a flat amount regardless of how the conversation goes

if you pay attention to their speech bubbles during an conversation, you can see how their mood changes.