One of the ways to improve students’ critical thinking skills is by guiding students to use feedback strategies since through feedback they can find out the aspects of their weaknesses, become more open-minded, know the progress of their learning, feel guided in making work improvements, and become more confident. This study describes the strategies of giving feedback as an effort to enhance learners' critical thinking skills of Deutsch als Fremdsprache (DaF) or German as a Foreign Language learners in Indonesia. The data were taken from the learning processes in the German Language Education Study Program in a public university in the East Java region. The research data of this study were collected through class observations as well as interviews and presented in a descriptive qualitative method with observation and interview guidance as instruments. The results show that the strategies of giving feedback which can enhance learners' critical thinking skills are throwing questions to learners, giving comments, output-prompting, and giving praises. Questions test the students’ grammar knowledge and evaluates if they have truly mastered the material they have learned. Comments lead them to evaluate their work and their understanding. Output-prompting encourages them to keep learning and increase their skills. Praises improve students’ performance in the classroom and motivate them to talk in the class.