On various places (YouTube, Twich) people mentioned that you can research emotions by clickim on your sim and selecting emotion, and then sim immediately receives that emotional state. I have tried f...
When I saw someone needing to research anger - they had to get themselves angry and perform angry interactions.. I don't know if this is what you mean?
But as @Cupid said, as you advance I would assume that those things would be easier accessible by interactions - but don't quote me :wink: