Alright as many people said, you can have many activities like reading, cooking etc. Personally I love reading books, better than watching TV and movies. I write also sometimes when I feel like. I use internet a lot when it comes to reading like recently I felt like knowing about psychology so internet was a big help! And yeah one of my regular activities is jogging. Now planning to join swimming classes. There is a lot to do along with studies but still I get bored sometimes.