3. Research Methodology 3.1 Materials There are several reasons for choosing Two and a Half Men as the research data. Firstly, these three men, Charlie, Alan and Jake are experts in flouting conversational principles. Each character has him own characteristics. This sitcom has ten episodes and each scene is full of humorous utterances in colloquial English. Therefore the number of humor examples in  Two and a Half Men is huge; secondly, it is a popular and successful example of sitcom series. From 2003-2012,  the air of this teleplay nearly illustrated every  aspects in communication; thirdly, the scripts of Two and a Half Men are available. The data is collected from the copyright DVDs and website on the Internet.

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