Answer:
refer to previous speeches
Step-by-step explanation:
Duane while giving his speech about safety refers to the previous speech and relates his own speech to it as his attention gette.
Refer to previous speeches strategy -
In many situation, the person has to address one after another and perhaps on the same topic. By referring to previous speeches, the speaker enhance his/her credibility by showing the knowledge gained by previous speech and thus, he/she will have opportunity to either contrast or compare his/her speech to previous speeches. Referring to the previous speech is an important strategy for attention Getting.