1, the official channel of the school. Most schools will give students a student handbook or address book at the beginning of school, which contains the contact information of various departments of the school. Students in Kaifeng can be found through the official channels of the school.

2. Class groups and social media. Nowadays, class groups and social media have become important tools for communication between students. Students can join a class group, a school group or a social media group, and get the contact information of other students through mass sending to find Kaifeng college students.

3. Students' Union and community organizations. Students' union and community organizations generally have their own contact information, and they will promote it in schools. Students can take the initiative to participate in activities organized by student unions and societies, and get the contact information of other students. Words can also be used to contact students at school.