Abstract
This paper reviews how Austin’s illocutionary act theory is used in face-to-face communication and online communication. In the aspect of face-to-face interaction, this paper places attention on the use of polite language and interaction in ESL (English as a second language) classrooms. In terms of online interaction, this paper explored interaction on Facebook and the use of memes, emoticons, emojis and stickers. After reviewing several research, this paper concluded that when talking face-to-face, the level of formality, gender, and cultural background affects people’s polite language. In ESL classrooms, the power, distance and rate of imposition affect teachers’ and students’ choice of language. However, the result of speech acts preference on Facebook is conflict. Previous research pointed out that memes can be categorized as communicative speech acts. Evidence shows that positive emoticons are preferred, which can improve friendships and vice versa. The review of literature contributes to further studies on the illocutionary act analysis of ESL classrooms in China and the communicative effectiveness of memes on the receivers.