Customers always come first no matter how busy or how late it may be. As stressful as it can be just make sure to smile and treat your customers like Kings and Queens. You want to make a good impression on your first day and show them that you are able to handle anything they throw your way. Be organized and clean. Suggestive sell to every customer you help. You can make some big bucks within a few years if you can keep good momentum and be consistent in everything you do