More and more people are interested in traveling. Why do people travel? "To see more of the country and the world," many people would say. Of course it offers us good chances to meet people from other countries, learn about their culture. In 2014, Chinese people traveled to other countries 30% more than in 2013. The number reached 77,000,000. Chinese people usually join large tourist groups and visit several countries in one trip. Chinese people don't just travel for sights. They can also go shopping. For example, during Christmas, shops usually offer discounts. Then shopping in Europe and the United States is popular among Chinese travelers. In winter, China goes through a cold season. So many people like going to some countries in Southeast Asia because the weather there is pleasant. Now more Chinese can go traveling. But some of them don't have a sense of public manners. A report says some Chinese don't follow the traveling rules. Someone writes 'Ding x x has come here', someone litters, spits, snatches bus seats, takes off shoes in public, talks loudly and smokes in non-smoking areas. We should stop doing these. As a good tourist, you should   _  .
litter and spit here and there take off the shoes in public have a sense of public manners speak loudly and smoke as you like