Hi. By telling people that they will impress their friends when they wear a certain brand of clothing, the ad is using a persuasive technique called positive association. The ad successfully employs this technique by instilling in people's minds that wearing that brand will lead to a positive outcome, thus the term positive association.
They look at your elaboration for your evidence and whether or not your evidence is relevant to the topic. Be sure to use transition words in your paper.
When you do research for a paper and use other people's words, that is considered plagiarism. I wrote an article on plagiarism if you want you can read through it.