Do you greet your clients by name or nickname? Is your tone of voice pleasant, or is it grouchy? Your customer will feel appreciated or unappreciated based on the greeting he or she gets.
There are a lot of clients that will show that they are glad to see you. However, your job is to do the same in return. Our clients are the people who patronize our business day after day and could choose many other barbers or shops, and we have to show them, as barbers and entrepreneurs, that we don't take their patronage for granted.