I finally finished a grueling day at university. The weather was clear and nothing bad happened, but for some reason, I felt mentally exhausted and my day felt complicated. I stuffed my pens into my bag and walked out of the lecture hall, only to realize I had so much free time that I'd have nothing to do even if I went home. If I'm just going to be a shut-in at home anyway, it's better to meet someone. How should I spend this time?