The study focuses on politeness of merchants and managers in the Minang tourism area in the use of aizuchi towards Japanese tourists in Padang city. Politeness in terms of the language used by Minang merchants in tourism areas can be seen in the daily lives of those who use the Kato Nan Ampek culture. The ampek kato are kato malereng, kato mandaki, kato manurun, and kato mandata. Based on the five characteristics proposed by Mynard, there are only three characteristics, namely expressing confirmation, showing concern, and surprise. These characteristics indicate a cultural attitude that uses Kato Nan Ampek, namely kato mandaki and kato mandata. Politeness that is done to Japanese people who have aizuchi culture, namely the response to the interlocutor varies depending on the place. In general, merchants and tourism object managers are very polite in order to attract tourists to their business. Because of the limitations in mastering the Japanese language, the characteristic forms shown by the merchants are only in the form of confirmation by using the words はい (hai), はい、そうです (hai sou desu), and the form of one's attention in the form of そうですね (sou desune), expressing doubts by using the phrase わかりません (wakarimasen). Meanwhile, the politeness given by merchants and tourism managers is based on the functions put forward by Horiguchi, namely stating that the interlocutor is listening, understanding the conversation, agreeing, and expressing feelings.

The sophistication of technology makes all information in one click away. The easiness in sharing and exchanging any news creates a virtual world community with active netizens just like in the real world. Netizens communicate actively through sending the latest statuses and other netizens give any comments later. The various comments provoke further comments. Twitter is one of the social media that is widely used by various groups with some purposes, one of them is for giving information and education. Netizens' tweets have the important role in spreading the news globally. It can be seen from the existence of accounts of the Head of State and other related official accounts. The news of the Corona Virus towards the end of 2019 receives breathless attention from netizens. In a short amount of time, the news of Corona Virus pandemic becomes the trend topic on various social media. In this case, American and Indonesian netizens wait eagerly about Trump and Jokowi's tweets about COVID-19, with various comments that follow. This description formulates the problem in this study. It elaborates the impoliteness strategies of netizens' comments on Trump and Jokowi's tweets about COVID-19. Then, the result of this study is to enrich politeness and impoliteness study in Pragmatic Class.