Be kind and professional
Let them understand the process before you get started. Ideally they were informed when the appointment was booked, but don’t assume.
When you encounter Red Light Items: (See Red Light, Green Light pages) You don’t have to let your customer know specifics as to why. We don’t want to say why we don’t like something. It’s not about what we “like”. Stay focused on what you have space for and what our little shop needs.