The audience in Tianjin Teahouse (Tianjin friends) is called "Yi" ~ ~ ~ ~ "
It's not that the steel wire copied this way of clapping, but that "hehe ~ ~ ~ ~" is a patent in Tianjin.
This is really for clapping. In Tianjin, two teachers, Tong Youwei and Ma Shuchun, are the most funded, while in Beijing, Degang Guo is a teacher.