Hi! Due to the poor construction of the sentences, I am not sure I understand everything you are asking. However, this is my understanding of what you are asking: 1) What is the word used to describe an emotion you feel when you watch a movie or series, or read a book where you can so identify with the character you want to imitate him/her? 2) What is the word used when you copy celebrities like Kim Kardashian and Zac Efron? If that is what you are asking then: 1) There are many terms you can use such as mirroring and mimicking but each of these have slightly different meanings. The term Psychologists use to describe this phenomenon is "experience-taking," i.e what happens when you identify with a character in a book or a movie, and you start acting like that person. 2) "We copy because we want to be like them, It's kind of [trendy]." This is not a rule. You can use other words and phrases. For instance, a few years ago we had what was dubbed, "The Miley Effect," where every teenager was imitating Miley Cyrus. But the truth is, we tend to follow trends. And whatever a celebrity wears is trendy (even if it's not). So for example, since we want to look look as cool as Zac Efron, we dress like him. Usually people do this when they see the person as a role model. Btw, the Persian word you used translates to "alter ego," which only goes to show how meanings get lost in translation. :) Alter ego is where you have an alternate persona. E.g. Beyonce's alter ego is Sasha Fierce. I hope I was able to answer your questions and I hope you found value in my response. I can help you to improve your writing skills. Feel free to book a lesson with me. Kind regards, -Joan