Have unshakeable integrity, a good attitude and thorough knowledge of the skills necessary to do the job well.
Smile and speak to people.
Call people by their name.
Be friendly, helpful and encouraging.
Speak and act as if everything you do is a genuine pleasure.
Be interested in other people.
Be considerate of the feelings of others.
Be generous with your praise and careful with your criticism.
Be a real service to others.
Develop a sense of humor if you don't already have one.