The speed of technology development facilities students in learning English digitally. They could express and use English in informal digital environment through social media and learning English application or resources. Informal Digital Learning of English (IDLE) contributes to students language enhancement. Therefore, this research aims to explore how IDLE activity can engage receptive skills in university students and to explore how IDLE receptive skill activity can develop university students’ receptive skills . This research used interview in a focus group and using an audio recorder. For analyzing the data, the researcher used thematic analysis method. The participants were seventeen university students. They have an experience a lot about using english in social media. The results of this research reveal that participants have different experience about using social media as an practiced of IDLE to develop their receptive skills.