Which of the scenarios below is an example of extrinsic motivation? Babysitting is a great way to earn extra money, so you take a class in CPR to learn lifesaving skills and tell parents you have the certification.
Everyone wants the same jeans from Hollister. They are not your favorite, but you buy them anyway.
Marketing is something that interests you, so to learn more about the design parts of it, you take an art class at a local studio.
You know that in order to get better at piano you have to practice more, so you set aside two hours each day to practice and note your progress.