Abstract
1. Introduction
2. Literature Review
2.1 Overview of politeness theory
2.2 Brown and Levinson's politeness and face theory
2.3 Leech's politeness principle
2.4 Gu's Politeness Principle
3. Methodology
3.1 Participants
3.2 Instrument design
3.3 Data collection
3.4 Data Analysis
4. Findings and discussions
Appendix
References