Quests are timed events that contain Tasks for you and your Club members to complete. Each task is a goal that you and your club members have to accomplish during a Quest in order to receive a Reward.
To help with a specific Task, tap the button that says "Help" and it will show that you are currently helping complete the task.
Follow the instructions above the meter of each task to gain points to complete your goal. Once the meter reaches 100%, everyone in your Club can collect the reward!