Vespian tends to role-play long paragraphs (rangin' between 5-12+ dependin' on my muse) in third person only. When Vespian role-plays, I tend to type as if I'm writin' a full-blown novel. Makin' sure to add details of the settin', the expression of my characters, their inner thoughts and mental stability, etc.
Vocabulary wise, I do use a few big terms (such as salaamed, pacify, whimsy, lackadaisical, titian etc) and yes, from time to time I do use a few legit anatomy terms (like phalanges, patella, scapula, epidermis, etc) but I am careful that whenever I use these terms, I have the surrounding sentence provide context clues so the readers won't look at Vespian and question what I mean. I am also careful in usin' said terms correctly- so no, Vespian does not wolfspeak.
I have a habit of entwinin' poetry into my works. Makin' Vespian recite lyrics, certain quotes, and even makin' sentences out of his dialogue fluent and a bit delirious. It allows me to express just how mad and burdened with psychosis he really is. How haunted he is by his own mind so it's more than just the, "I'm goin' to kill all of ye'." It takes more to be a madman than just an uncanny lust for death. Though Vespian is far from the best for there are many role-players out there I do admire. Some might post here in this thread.