The Humanoid Agents developed in collaboration between NVIDIA and the University of Washington can realistically simulate human emotions and behaviors, including basic needs and emotional responses. These agents incorporate System 1 thinking, adjusting their activities based on emotions and needs to create more human-like interactions. The research utilizes OpenAI's ChatGPT-3.5 to create Humanoid Agents, updating their plans based on changes in emotions and needs. Additionally, the research introduces the Social Brain Hypothesis, suggesting that agents adjust interactions based on intimacy.