Can someone help me think of physical traits of a mysterious or congenial person?

I am writing a page of connotation for a made up character for any adjective. I can't decide if I should write about a congenial or mysterious person. idk if congenial is the word for a person that everyone likes and is beautiful. Would that be popular or congenial. For a MYSTERIOUS person and a CONGENIAL person can someone help me think of physical traits that would help describe this person? Thanks SOOO much!!:)