1) My hobby is reading books. I read in my free time because it helps me relax and learn new things. I also enjoy drawing and riding a bike. A hobby should be an activity that a person chooses freely and enjoys regularly. If someone forces another person to do something, it is not really a hobby.
2) I have a hobby: I read books. I have read 10–20 books in a season. I was punished eight times. Books are all around me. I have six unfinished books, but I sometimes read a book in one go.