"Although there is no universal formula for interpreting the written or spoken word, academic research does show some consistent patterns. The use of positive words is often associated with extraversion. If you want to come across as more outgoing, sociable, and confident, write or say words such as “fun,” “excited,” and “amazing.” Individuals who tend to have a pessimistic and emotionally sensitive disposition more frequently use negative words, such as “concern,” “worry,” and “afraid.” Those who are smart and curious tend to use more complex, unusual words such as “narrative,” “leitmotiv,” or “rhetoric.” Incidentally, that kind of language is more likely to be associated with liberal than conservative political preferences. And, unsurprisingly, swear words can signal antisocial and psychopathic tendencies, whereas self-referential pronouns (“me,” “my,” and especially, “I”) can be indicative of narcissistic tendencies." [1]
1. How to Curate Your Digital Persona, by Ben Dattner and Tomas Chamorro-Premuzic. REPRINT H05PM1 PUBLISHED ON HBR.ORG, JULY 03, 2020