Please, sorry, thanks: the three words that change everything

Introduction: abracadabra

They psychology of please. There you are ; Open sesame ; Say it with a smile ; Wash feet ; Words matter

The science of sorry. Try tears ; The fifth petition ; People of the second chance ; Secret sauce ; Unoffendable

The theology of thanks. Take a breath ; Daily reintroduction ; The attitude of gratitude ; Flip the blessing ; The overview effect.