When it comes to describing someone's demeanor, it's important to have a wide range of synonyms to choose from. Some synonyms for "have the demeanor" include "display the attitude," "exhibit the behavior," "portray the mannerisms," and "emulate the bearing." Each of these phrases can help you communicate the same idea in different words, allowing for greater nuance and specificity in your writing or speech. Other synonyms might include "project the persona," "exude the essence," or "wear the disposition." By expanding your vocabulary and using different synonyms for "have the demeanor," you can convey a richer and more precise meaning in your communication.