Hobby is a special interest or activity that you do in your free time. It helps to relax, get satisfaction and pleasure when you pursue it.
Also, it distracts from everyday routine and hard work when you are interested and involved in a different activity.
As for me, my hobby is drawing. I like to draw different pictures.I spend a lot of time on my hobby. I go to art school four times a week. In art school we draw gouache and watercolour. We create our own works and take exams. Besides, some pictures are exhibited and we take pert in art contests. All of this is very enjoyable but takes a lot of time. Nevertheless, I find my hobby interesting and useful for me.