Based on the Relevance Theory established by Sperber & Wilson, this paper sets out to look into the persuasive power in a chosen advertisement and at the same time tries to render plausible explanations of the contextual effects that are inferred by the audience in the communicative process. Based on the Relevance Theory established by Sperber & Wilson, this paper sets out to look into the persuasive power in a chosen advertisement and at the same time tries to render plausible explanations of the contextual effects that are inferred by the audience in the communicative process.