Whilst there are numerous websites and articles on ethics and values, being professional is about ensuring that these are followed, adhered to and respected in every way possible. Its not just about practicing it in the workplace, its about ensuring that every component of your working and personal life supports the concept.
How often have you run into a work colleague when out with your family or friends? Do you shy away from seeing them because you are embarrassed or do you embrace them and allow them to have this window into your life?
Professional conduct is all about the qualities or actions of an individual and how they behave and act. Its implies quality of the individual or the organisation or service.