Keep your work area clean and presentable. If it is messy or generally looks dirty, it once again gives the customer the wrong impression. A customer's mood can change quickly if they start to see their cashier as someone incompetent. Additionally, knowing the areas of the store and generally knowing the stock of each product allows for smoother interactions with customers, as the information will be known to you and there will be no need to call another person to answer the customer's questions. Next, train often as a cashier. Go through all the training manuals provided to you and get a refresher on how to do various things. For example, reviewing how to issue a refund makes a transaction focused solely on that go through much more quickly. This allows lines to move faster and leaves each customer having to wait less for their turn at the checkout. Ultimately, dealing with customers day in and day out is exhausting work. That's why finding ways to stay motivated and maintain a positive outlook throughout each day will improve how you handle difficult situations and keep you calm..