It is very important that the level of difficulty is properly adjusted to the dog’s emotional capabilities and motivation. If we start with a high level right away, we may alienate our pet with it, so the fun has to be properly adjusted to motivate the dog to act. It’s best to start with very simple steps such as serving wet food or pâté to a toy with a large opening. Another idea could be to use layers of wet and dry food inside the toy. Then we can try to freeze the toy with the contents to make it more difficult to pull out. If the animal can’t handle the task, go back to the simpler one. Moreover, let’s not help the dog because it will stop thinking and will ask us for help. After a successful game, we can move on to other activities, which consist of moving, pushing, opening or rolling.