People who visit Shichahai may see a foreigner wearing a "red armband."

A tall foreigner, wearing a red armband and a red vest at a volunteer kiosk in front of the Lotus Market every day.

The foreigner, 63, is American Terry Crossman. His Chinese name is Gao Tianrui.

Gao is a safety volunteer at the Lotus Market in the Shichahai area, Xicheng district.

The majority of the volunteer team are aged between 58 and 65 years old, and 70 percent of them are women.

Gao Tianrui has been living in Beijing for the past 23 years.