A customer learns sign language in Sign Coffee shop in Hangzhou, east China's Zhejiang Province, May 17, 2019. Lu Jun and Yang Di are a hearing-impaired couple living in Hangzhou. With the help of local disabled person's employment service center, they learned to make coffee, and later managed to start a coffee shop named "Sign Coffee" in the west of the city in March 2019. In daily time, the couple communicate with customers by sign language or written words. (Xinhua/Weng Xinyang)