Price is not a consideration when a personal relationship exists.
Random acts of kindness and the desire to do the best job possible lead to trust.
I believe that a smile is the attribute of a positive attitude, both for yourself and the perception of others.
Biggest question: Isn't it really 'customer helping' rather than customer service? And wouldn't you deliver better service if you thought of it that way?
Trust is not a request, Trust is earned.
Positive attitude is the foundation of your life - and the determining factor of your ability to serve.