how to star a conversation to you ?
my teacheer of translation who always tells us that we shuold communicta with foreigner, but i don't know how to start a conversation, we usually ask the foreigner 'what is your name?' 'where are you from ' 'which food do you prefer' ..... if i were the foreigner, i may hate this question

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Actually, questions regarding one's home country would often trigger positive feelings.
Most people like to share their culture and are very proud of their own country. Ask them a question that would allow them to share more of their own hometown/city, and they would more than willingly oblige to speaking about it. 
Rather than asking personal questions, ask things about what they've seen, and how different is their country like from yours.

Questions such as:
"So what is your country like? Is it very tourist-friendly?"

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For example your first question  you can uses "where is your favorite move?"

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The answer for you is rather simple Niko.   
Allow the foreigner  to start the conversation.