This is true. The proper term is body language and it can help display emotion or context for words
Answer:
In the book Harry Potter and the Sorcerer's Stone by JK Rowling Harry is first I,troduced to the magical world when he enters Diagon Ally. This ally is a bright cheerful area full of energy he seas so many new and diffrent things described in great color and hears people talking about strange things. It is a great way to show the reader how this world is so magical and new to Harry.
They should both restate the claim. Your conclusion could have a Call To Action which tells the reader that you are giving a reference to him/her.