Why do people around us sometimes do something that we consider unquestionably flawed, and why do they try to prove us wrong even when we are confident in our decisions and worldview? In this course we will delve into the complexities of decision-making in the modern era. This comprehensive course takes a multidimensional approach, drawing insights from cognitive and social psychology to shed light on the fascinating intricacies of human behavior. Participants will gain a deep understanding of our cognitive system and explore the multitude of cognitive biases that impact our judgment. Through engaging discussions, we will unravel the mechanisms that make us susceptible to these biases, examining their influence on decision-making processes. Moreover, the course will emphasize the pivotal role of social interaction in shaping our choices. We will explore how our interactions with others impact our decision-making, revealing the captivating dynamics at play. This course will not only provide a platform for discussing these concepts, but also offer hands-on experiences, enabling participants to gain practical insights into human behavior. By the course’s conclusion, students will develop a profound appreciation for the intricate factors that shape human decision-making. Empowered with knowledge, they will be better equipped to navigate the complexities of human behavior in various personal and professional contexts. Overall, this promises to be a thought-provoking exploration of human behavior, encouraging participants to challenge their assumptions and broaden understanding of the diverse perspectives that influence decision-making.