2. Don't be a jerk to your employees - or at least don't let me see you doing it. Sometimes I'll see a manager or supervisor boss around an underling, or be obviously surly with them. Maybe managers think this reassures customers that "someone's really in charge," but, unless the employee did something truly terrible or illegal, it doesn't. Most people realize that having a "bossy" boss doesn't make you want to work harder; it makes you want to quit. So when I see someone get bossed around or yelled at by their manager, it makes me worried that the employee is bitter, hates their job and will take it out on me, the customer, by spitting in my food, or worse. That's why respecting employees has everything to do with customer service.