Everyone’s diagnosing everyone with narcissism on the thinnest of criteria these days, but it turns out there is one way to detect a potential personality disorder in a person: their speech patterns. Psychological studies have shown that the way a person uses language, especially in times of conflict, can be a huge red flag for conditions like narcissistic personality disorder, and some of them are so common that it’s easy to overlook them. The newest research on this topic comes from the University of Liverpool in the U.K., which found that whether it’s in-person or just in an email or text message — or even a comment on a social media post — people with personality disorders tend toward certain uses of words that might be predictive of the conditions. To evaluate this, lead researcher Charlotte Entwistle and her colleagues analyzed multiple studies of speech patterns and discovered three observable trends that correlate to personality disorders. Now, before you get too excited, Entwistle noted that “not everybody has a full-blown disorder,” because personality, like so …