President Kennedy uses the following rhetorical devices in his Rice Stadium Moon Speech: informal tone, questions, and allegory. A rhetorical device uses words in a certain way to convey meaning or to persuade. President Kennedy uses informal tone, questions, and allegory as a technique to evoke emotions on the part of the reader or audience.
The author will write where they feel comfortable, the author looks at all aspects of life for inspiration and therefore takes notes or writes when he/she feels the need.