Human Computer Interaction (HCI) focuses on the interaction of humans with technology and its effects. No wonder that HCI is part of the basic knowledge for computer scientists. The subject is multidisciplinary and draws on influences from very diverse fields, such as psychology, computer science, design, media, engineering... Together with three other PhD researchers, I taught the course "Introduction to Human-Computer Interaction" in the winter semester 2019 in the Bachelor Computer Science program at the University of Luxembourg. In the first part the students learned important theoretical basics which they could apply in their own projects in the second part.