My favorite foreign word is the Italian sprezzatura. Even though the OED recently added it to the official English language, it’s one of those foreign words that doesn’t translate exactly. I’ve always understood it to mean something like having deliberate little imperfections to convey that you’re not trying that hard. It’s the difference between Eugene Levy’s hair and Dan Levy’s hair.
Effortlessness, making it look like you’re succeeding casually, is cooler than anything except smoking a cigarette.