Once you enter the game, you will find two main options which will allow you to play in different modes:
In this mode you will find actions such as taking care of the pets along with Jack, repairing the shelter or unlocking a new room. To complete each task, you will need a certain amount of stars that you can see next to it, in the button that will take you to complete it. In this section, you will also see a bar that indicates what day you are on and how many tasks you need to complete in order to receive a gift.
Once you select the "Level" icon, on the bottom right-hand side of your screen, you will be able to answer questions throughout the neighborhood to earn stars, which will then allow you to complete tasks. Each neighbor will specialize in three categories that will give you different rewards depending on their difficulty. Below the "Level" button, you will see a bar indicating the number of levels you need to complete to receive a new pet.