I know how to fluently speak/write English (obviously), Korean, Spanish, and Mandarin.
First of all, do colleges favor those who speak multiple languages fluently, sort of like an admissions “boost”?
If so, how do I prove that I’m fluent in all on my apps?
Speaking multiple languages fluently shows that you’re well rounded and capable of long sequences of study. I’m not sure where to put that on an app, sorry. But, I have to ask: Are you planning on studying any of these in college?
It’s a great life skill; it is not an admissions boost. After all, the vast majority of international applicants are multilingual, and their chances are worse than domestic applicants.
You don’t; they are not asking you to “prove” anything. You can certainly take the SAT Subject tests extra tests in each of those languages and/or the AP tests in Spanish and Chinese. However, that will really only be for credit and/or placement.
@awesomepolyglot Nope, but I just wanted to know if my interests/hard work of learning these languages (English is given) would pay off for my chances.