Aspeaker can invoke concepts or ideas that the audience is already familiar with by including in a speech

Common Themes

Explanation:

Common themes is the name of the term described in this question because using common themes or including them on the speaker's speech could make the audience relate on the topic and become intrigued or interested. With this method, not only will the speaker give out his information but he or she could capture the attention of the audience.

kennedy creates personal credibility by saying he is more than fit to lead. he talks about the sixty day period that he constructed administration, and says based on that he will be an acceptable leader.

jfk has a great reputation as an american citizen. he fought in wwii, and earned the navy and marine corps medal. he saved several men on his pt-109 patrol torpedo boat after an attack by the japanese navy. he also served in congress for the 11th congressional district for massachusetts, and served three terms in the house of representatives.

explanation:

nambe vazhkaile elam nala irukum