if you notice that someone is unnecessarily speaking in jargon when they don’t need to, this reflects desperation to be perceived as someone who is smart and knowledgeable. This is useful to know when you’re analyzing someone who is in a position of authority, such as a politician, a financial adviser, a boss, etc. If they overuse jargon, you’ll know not to trust them, or if they’re your boss, to use it to your advantage.