本文以日治時期大稻埕富商李春生所著的〈東遊六十四日隨筆〉為對象，透過合作原則（cooperative principle）（Grice 1975）和禮貌原則（polite principle）（Leech 1983）探索作者赴日期間和日方各界人士的互動情形。在日方安排下，這段時間和李春生往來的人士超過一百人，其中獲作者具體描述者依身分不同可分成四類：1.日方政治人物；2. 商業相關人士；3. 媒體記者；4. 演講對象（含教會與懇親會社）。由於各方懷抱的目的不同，透過互動行為和語言使用傳達的訊息也各異，這部份是過去罕為諸家學者注意的地方；對此，本文皆視為廣義的訊息符碼，並從交際語用觀點進行探索，試圖援引提供一套詮釋性框架，一窺不同會話策略背後的目的與收效。

In the light of communicative pragmatics, this paper aims to explore the interactions between Li Chun-Sheng（李春生）, the author, and the people he met in Japan in the novel “A Journal of Sixty-four Days Trip to the East”（東遊六十四日隨筆）. In this paper, interpersonal reactions are regarded as a kind of language performance in human behavior. It is found that people would use several communicative strategies to interact with each other based on different goals. These acts will be analyzed with the cooperative principle （Grice 1975） and polite principle（Leech 1983）. Several conversational implicatures are found by examining Li Chun-Sheng’s interactions with politicians, businessmen, reporters and other Christians, respectively.