I start training section visa extension at Chiang Mai Immigration Bureau which this section have to do about a lot of document. First, my trainer gave me to work in the Information for explain documents of visa extension to foreigners which no everyone can do because their documents are not already. Second, return back passport to foreigners, check document of foreigner who came for extension visa, answering the questions through phone. By the way this duty make me to develop for speaking and listening English language. when I was trainee 2 week ago inspector gave me to work for save data of foreigners from document and passport into government book and then I have to bring a document and passports to inspector.