Looking online, universities now generally have universal walls, through which college students can post or pay attention to their own needs. To find the QQ number of Global Wall, you can search for a nickname similar to "Global Wall of xxx University" through QQ group nicknames, or you can follow Tik Tok, search for schools, and easily find students in this school through some comments.

If you look offline, you can step on it directly at the school gate. Now the epidemic is so serious that many universities are closed. Students need to leave fake notes like high school students, so it is not efficient to step on some places. You can go online to find college students near the school.