Answer:
Social influence.
Explanation:
Social influence is a type of influence where one or more than one persons change someone else's behavior and attitude. It's both unconscious and conscious.
Sam has shown the change in his behavior since he has been surrounded by new people at his new school.
In this type of conformity, Sam is changing himself in ways that he can be more similar to the others, because he wants to feel like he belongs there and that he will be accepted, so his self-esteem will rise once they acknowledge that he is one of them now.
Cigarettes companies like to appeal to a younger audience, as it is likely for teens who start smoking, to not stop. There are studies that show that cigarette ads make teens feel that smoking would make them popular, and "seem cool" or tough.
<em>Source:</em>
<em>Duh-Leong, Carol. "How Cigarette Advertisments Influence Teens." https://www.healthychildren.org/English/family-life/Media/Pages/How-Cigarette-Advertisements-Influence-Teens.aspx. 14 Dec. 2020. Accessed 19 June 2022.</em>