Hobbies are practiced for interest and enjoyment, rather than financial reward. Examples include collecting, creative and artistic pursuits, making, tinkering, sports and adult education. Engaging in a hobby can lead to acquiring substantial skill, knowledge, and experience. However, personal fulfillment is the aim.

What are hobbies for some people are professions for others: a chef may enjoy playing computer games as a hobby, while a professional game tester might enjoy cooking. Generally speaking, the person who does something for fun, not remuneration, is called an amateur (or hobbyist), as distinct from a professional.