Core Points - The 2025 Service Trade Fair opened on September 10, with 1,050 volunteers from 15 universities in Beijing, Shijingshan District, and Shougang Group providing services in information consultation, route guidance, and explanations [1] Group 1: Volunteer Roles and Responsibilities - Liu Xingyu, a graduate student from Capital University of Economics and Business, served as a guest guide volunteer, responsible for directing attendees through security and communicating their arrival status to venue staff [3] - Volunteers generally possess multilingual backgrounds, enhancing their ability to assist international guests, as demonstrated by Chang Zhifei, a Spanish major from Beijing Language University, who helped foreign journalists navigate the news center [3] - Volunteers were equipped with digital tools, including navigation maps and electronic QR codes, to provide real-time information on shuttle locations and optimal routes to various exhibition areas [5] Group 2: Volunteer Training and Skills - Beijing University of Technology required volunteers to communicate in English, ensuring they could assist attendees effectively, as exemplified by Pan Jinlin, a junior in transportation engineering, who became well-versed in the layout and schedule of the event [6]