Chapter 2 opens by asking readers to reflect on strengths and weaknesses of experts of their choice and then to consider overlap between their own strengths and weaknesses and those of these experts. Variation in personalities and styles is useful in public engagement because we meet many different kinds of people in informal learning venues. The chapter thus encourages readers to be themselves as they talk about their science. Genuine passion combines well with any level of expertise. Further, saying "I don’t know" when you reach the edge of your expertise shows your conversational partners that you are honest. A demonstration of counting in different sign languages exemplifies these concepts. This chapter also encourages a growth mindset so that both success and failure during public engagement contribute to improved skills. This chapter’s Closing Worksheet asks readers to choose the topic area that they’ll develop into a demonstration through activities later in the book.