How has your past experience prepared you for being a cashier? Think through your work history or your school history, and identify the key things you have done as well as training you have received that helped get you ready for a cashiering job. You might share that you have been a cashier for 7 years already. Perhaps you will share that you have taken a customer service fundamentals class in school. Maybe you will share that you have always excelled in math which will help you with customer transactions. Or, maybe you will share that you have many years of working as a bagger/cart runner for the store, and you have gained great knowledge about the items the store sells which can make you a more efficient cashier.