I know:
1 language fluently, I am American
2 languages fluently, I am American
3+ languages fluently, I am American
1 language fluently, I'm not American
2 languages fluently, I'm not American
3+ languages fluently, I'm not American
more than one language, but only conversationally. I am American
more than one language, but only conversationally. I am not American.
Us Americans do not realize how unusual it is to only speak one language, and I'm curious to know other bilingual/polyglot peeps casually hang out here. Capping it at 3 is probably too low but, alas, I only have so many bubbles.
American here refers to if you identify as American.
Fluent here refers to if you can effectively intake the language (in whatever form is applicable) and understand it with ease, as well as produce it in a similar fashion and native speakers/signers understand you.