This study aims to investigate how students can improve their speech performance by using circumlocution, one of communication strategies. The design used is classroom action research (CAR) implemented into two cycles. At the first cycle, the theme given is informative speech. While the second one, the theme is persuasive speech. The subjects of the study are fifty-three students of two public speaking classes. Both classes have difficulties in performing speeches confidently especially when they lost their mind in the middle of the speech. The students prefer writing and memorizing script to using draft which makes the performance worse. In the treatment, the students were divided into groups and evaluate each other's performance. The result showed that all students could improve their communication skill through circumlocution strategy. Another result shows that the students can also increase their confidence in presenting the speech. Besides, despite delivering the good content of the speech and performed with appropriate gestures, the students could develop their performance without looking at the whole script.