With the G20 Hangzhou Summit set to commence in less than three weeks, the people of Hangzhou have also been working hard to provide for a more hospitable environment.
The public bike system is a popular form of transport in Hangzhou. There are hundreds of bicycle stations across the city. Local student Wang Zhe and her classmates are making sure they are clean as the G20 summit approaches.
"We want to put in our effort to make Hangzhou cleaner. It is not just for the G20 summit preparation. It benefits everyone in the city," Wang said.
Another local resident has been making a difference on zebra crossings since May, with a campaign showing thumbs up for civilized driving.
"When drivers wait patiently for pedestrians crossing the street instead of honking their horns or pushing past them, we give them a thumbs up. We want to encourage more people to drive in a civilized manner," said thumbs-up campaign organizer Zhang Nengqing said.
"I was always worried that drivers wouldn't wait for us crossing the road in a busy traffic. Now more drivers let us go first. I feel much safer," Hangzhou resident Zhao Xiaoye said.
The thumbs-up campaign will continue after the G20 summit to make traffic safer in the long term.
It is not only locals taking part in volunteer work, foreigners in the city are also contributing to make Hangzhou more hospitable. Canadian student Raqibul Hassan recently joined a volunteer team in a tourism spot.
"When I came here, I don't speak Chinese. And I met so many people, they helped me a lot. I got their love, their respect. So now I speak a little Chinese, and I want to do volunteering work to help people," Hassan said.
Zhou Yanzhen has been volunteering here for five years. The new recruit has put a big smile on her face.
"He has been really helpful in solving foreign visitors' problems and giving them directions. We work very closely with each other," Zhou said.
Volunteers say they too will carry on after the G20 summit to spread their goodwill.