If I lied and told Bob that I was very pleased to see him when I really am indifferent to his existence and couldn't care less if I never saw him for the next two thousand years. My lie made him very happy. Is that as bad a lie as if I lied in an 'ordinary' way, for example lying to my father about why I got home so late or telling my mother I didn't break her favourite vase? What if it didn't make Bob happy, but it just meant that we didn't have an awkward moment since saying that to Bob is what was socially expected of me?