Indirect characterization is the process of describing a character through that character's thoughts, actions, speech, and dialogue. An author will use this type of characterization to guide the reader in making their own conclusions about a character.
Every night, Grendel attacks King Hrothgar's wealthy mead-hall, Heorot, killing Danish warriors and sometimes even eating them. ... After explaining that he owes Hrothgar a favor because Hrothgar helped out his father,Beowulf offers to fight Grendelhimself. King Hrothgar gratefully accepts his offer.