Please teach me an appropriate manner in the street.
Whenever I walk in the street, many people including black homeless say hello or "a mini talk" to me. Can I ignore? I am not interested in them at all.
One day, in the street, one homeless asked me "what are you studying?" "why don't you buy me lunch?" In my opinion, I do not need to expand conversation with him. How should I deal with these people? In my culture, homeless never talk to general people in the street, so I am just confused...
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