His confidence is transformed by the crowd’s response.
Scotty is described as being a "quavering husk...just moments before." This shows his lack of confidence and anxiety about being on stage. Once the crowd's enthusiasm and excitement for his performance reached him, it is described as "lifting him off his stool...unleashing something strong, charismatic, and fierce." This change in his demeanor shows his confidence grow in response the crowd.
2 over 10 times x over 100 do it yourself
The author indicates that Terrorism is the force that holds the United States together. She explains how, even though everyone in the United States comes from different cultures and backgrounds, and they do not often succeed in treating each other well, they come together joined in Patriotism when the nation faces danger or tragedy.