Most people are taught basic manners in their childhood. Our parents teach us to give up our seat for an older person, not to make too much noise, and to respect other people's space. But some people grow up and seem to completely forget the rules of behavior on public transport. 

Unfortunately, many people consider respect for the rules of etiquette as something shameful, considering it a feature of classy aesthetes who are removed from real life. Good manners are as different as the people who show them. Nevertheless, there are some etiquette rules that should be followed no matter what nationality you are. Everyone should want to be a polite person after all! Here are 20 things you shouldn't forget when you're on public transport.

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