Taking on quests in King of Kung Fu is one of the best ways to maximize your honor points, which is the only way to purchase items in the store without spending your (real life) hard earned money. While these may not seem to be very profitable right away, stick with them because they will reap nice rewards for you. Once you finish all the beginner quests, you will be able to take on expeditions to different areas daily, which will allow you to choose from to gaining honor points, experience points, or a combination of both as your reward.