Conclude your presentation, say what you have talked about in the presentation and thank the audience for listening, you can also ask if they have any questions

You can also finish on a final comment that gives the audience something to think about like a rhetorical question.

I don't get the second question.

depending on wht youre presenting about. for example if its a presentation about his accomplishments at the end i would challenge the crowd with aomething like "whats your excuse?"

or something like "we all make choices make sire its the right one"

try to use a catch phrase thatll catch the attention of the crowd

Having lived in Russia and I look at you later. Finish what you tell them avenged Pearl Harbor.

"That is all I have to say" and then look at your audience. Command them, own them.

spread your arms out and go "ta-da!"

Without saying and um yeah or that's all

Please help!

And also how would you explain the more after i put this quote in after this sentence For example a good change would be fighting for America. Life from the Great Gatsby as Nick says "I graduated from New Haven in 1915, just a quarter of a century after my father, and a little later I participated in that delayed Teutonic migration known as the Great War"? Pleasee help!