Actors: how do you prepare to play an "arrogant" character or role?

seems good acting is adaptation and observation, but what about playing roles that are really remote from your own character? how does a mild-mannered person prepare to act out of character, specifically “arrogance.”

any physical gestures, films, movies, character will help…

my role character is a conceited womanizer, evil, in power, dysfunctional, materialistic…