How many people from other majors do you know on campus? Do you want to know people from other majors? Do you think cross-course communication is necessary? The purpose of this project is to explore how to reduce barriers to cross-disciplinary communication and promote cross-disciplinary cooperation and knowledge sharing. Use Course Pins as social triggers, combined with social psychology, Liberating Structures methodology, etc., to promote student communication, look at problems from different professional perspectives, inspire inspiration, exchange capabilities, etc., and increase the breadth and depth of academic research. Help students expand their network and pave the way for their future careers.