As a person who works in a casino, you will actually have to be focused on what the job is. If you are a dealer, you should always be focused on the games that you are dealing with. You will also need to react to certain situations inappropriate ways. If a customer is rude to you, you are not allowed to be rude to them. You will have to approach them with a smile on your face. No matter how stressed you get, you will always have to make sure that you bring happiness to the customers. When you are happy, you may get tipped more.