For junior students, if they have more spare time, then they can consider doing the following things:

First: participate in job practice. Post practice is different from social practice, post practice is for future employment to lay the foundation, in the process of post practice can accumulate a lot of work experience. Job practice should find a job that matches your specialty and does not interfere with your school program.

Taking the computer science major as an example, if you study big data, then you can choose to practice in positions related to big data, you can start from data collection, and then learn data cleaning technology, data analysis technology, data presentation technology and so on.

Second: enrich their knowledge structure. University during the study period should be the main experience on the study, you can use their spare time to enrich their knowledge structure. Enrichment of knowledge structure can be centered on their own professional development, in the specific content of the choice can be communicated with the teacher in detail. If you are a computer-related major, reading the source code of the Linux operating system in your spare time is a good choice.

Third: Learn a skill. For college students, it is entirely possible to use your spare time to master some life skills, such as getting a driver's license is a good choice. There are also many skills that should be learned, such as learning some medical knowledge, legal knowledge, economic knowledge and so on, which have a more realistic significance for the future work and life.