"Small Talk"
According to "small talk", some people don't expect to respond when you say "How are you?"or end the conversation politely. This kind of situation can happened anywhere. However, there is a better way to start a conversation. for example, when you ask something about the time, you have to say "excuse me" first because this is a better way to get someone's attention. Then, if you guys have a long conversation and you don't want to listen anymore and you don't know how to end the conversation, just say " it's nice talking to you" or " sorry, I have to go. Take care". This is some other way to start and ends the conversation politely.
According to "small talk", some people don't expect to respond when you say "How are you?"or end the conversation politely. This kind of situation can happened anywhere. However, there is a better way to start a conversation. for example, when you ask something about the time, you have to say "excuse me" first because this is a better way to get someone's attention. Then, if you guys have a long conversation and you don't want to listen anymore and you don't know how to end the conversation, just say " it's nice talking to you" or " sorry, I have to go. Take care". This is some other way to start and ends the conversation politely.