I think couples should also be kept on the train. As lovers, you can do whatever you want in hidden places, and no one cares, but in public places, you can't be too wild and uncivilized. Once I got on the train from Nanjing to Beijing, and a couple sat diagonally opposite. They're not very pretty. At first, men were lying on women, and there was music in their mobile phones. They are talking to each other. They sat opposite an old couple in their fifties. I squinted, and the old couple were whispering about the two men. They are still the same, don't care what others think, and continue to be ambiguous.
After a while, the boy got up, sat up and began to kiss the girl. The more he kisses, the crazier he becomes. The old couple sitting opposite him couldn't resist. He said that this is a public place. You are very civilized, but those two young people don't want to hear it. They continued to kiss, and then they put their hands into the girls' clothes and wiped their breasts. After a while, the old couple across the street stood up. I just heard the people next to me say, you can do whatever you want at home, but don't do it when you come out, okay? In this way, the boy and girl stopped, and the boy sat up with the girl in his arms. I think this is also a very beautiful thing.
Therefore, with so many people in public, we should restrain ourselves and know what to do and what not to do.