A hearing impaired staff member (2nd L) narrates culture of coffee with sign language as his colleagues look on in a Starbucks coffee store in Guangzhou, south of China's Guangdong Province, May 19, 2019. China marks the 29th National Day for Helping the Disabled on May 19, the third Sunday of May. (Xinhua/Deng Hua)

　　A staff member (L) communicates with a customer using sign language in a Starbucks coffee store in Guangzhou, south of China's Guangdong Province, May 19, 2019. China marks the 29th National Day for Helping the Disabled on May 19, the third Sunday of May. (Xinhua/Deng Hua)

　　Staff members practice sign language in a Starbucks coffee store in Guangzhou, south of China's Guangdong Province, May 19, 2019. China marks the 29th National Day for Helping the Disabled on May 19, the third Sunday of May. (Xinhua/Deng Hua)

　　Staff members practice sign language in a Starbucks coffee store in Guangzhou, south of China's Guangdong Province, May 19, 2019. China marks the 29th National Day for Helping the Disabled on May 19, the third Sunday of May. (Xinhua/Deng Hua)