In "The Right Attitude to Rain," Alexander McCall Smith explores the theme of human self-perception and the inherent transparency of individuals. The quote, "We never realise how transparent we are," suggests that people often overlook the ways in which their true emotions and intentions are visible to others. This lack of awareness can lead to misunderstandings and missed connections in relationships.

The book delves into the nuances of social interactions, highlighting how individuals project their inner thoughts and feelings, even when they believe they are concealing them. Through this exploration, McCall Smith encourages readers to reflect on their own openness and the importance of being attuned to the perceptions of those around them.