Individual colloquial expression and group interaction are getting more and more needed as the new era emphasizes on the globalization and data science. Business companies are looking for their employees with higher fluency and specialty on the colloquial expression ability. In order to meet the requirement, a college student needs not only to be specialized on his/her major subject, but also to be skillful on the colloquial expression. Offering such kind of courses in college education program is beyond doubt. This study tried to design a teaching method for the course. To it, there was the external expression training-how to use speaker's intonation to attract listeners' attention or how to use hand gestures, facial expressions and body movements to express speaker's intention.