Read more and study more. Books are mankind's best friends and can give us many unexpected gains. Reading more books and studying more in your spare time can not only broaden your time, but also increase your knowledge.
Watching movies with friends, and inviting friends to watch their favorite movies when you are free is also a better way to kill time.
Sing karaoke with friends. You can invite friends to sing karaoke when you are bored. You can be as crazy as you want, and you can forget all the unpleasant things at the same time.
Find something to do. When you are bored, you can buy a cross stitch and embroider at home, which can kill time and hone your mind. Kill two birds with one stone. It's really good.
Do some exercise. When you are bored, you can do sports, such as yoga, dancing and so on. Exercise not only kills time, but also contributes to your health and keeps a good figure.
Learn to arrange flowers. When you have nothing to do, you can turn on TV programs to learn flower arrangement. Flower arrangement is a very artistic craft, which can kill time and cultivate sentiment.
Do housework. When you are bored, you can see if there is anything you need to do at home, such as tidying, washing, cleaning the table and so on. It's a good choice to kill time.