In your neighborhood, you see other Sims walking around. Some are jogging, some are strutting, and some are walking with their shoulders hunched over. Just by watching them, you can get an idea of what emotional state they might be in. Why not find out something more about them? What is their story?
Along with emotions, The Sims 4 also focuses on creating a story for your own Sims as well as finding out what is going on in the lives of other Sims. Send your Sims over to talk to other Sims. After an introduction, find out more about them. If they are Sad or Angry, try to improve their emotional state while building a friendship at the same time.
Your Sims also have a story—one for you to help create. From the moment your Sims move into their new neighborhood until the Grim Reaper pays a visit, your Sims are living out a story. As the author, you can decided how the story flows. What are the challenges, what are the highlights, where will they end up? As mentioned earlier, the focus on neighborhoods helps you to develop a more intimate story. Meet your neighbors and get to know them. By learning their traits, you can understand better why they do the things they do. It is very easy to spend almost an entire day just walking around and talking to other Sims. Try to create friendships—or even romantic relationships. Each household is a book of empty pages waiting to be filled with a story of your creation.