The document summarizes Michihito Mizutani's guest lecture at Aalto University on interaction design and emotion. The lecture included an introduction to interaction design, understanding emotion in design through case studies, and a group activity for students to design seductive user experiences with everyday objects. Students then presented their ideas to the class. The document provided context on defining interaction design and behaviors that shape everyday life through prototypes. It also explored understanding emotion in design using examples from literature and case studies on products for emotional communication and designing seductive user experiences.