Answer:
Plot and Dialogue
Plot and dialogue reveal the traits and motivations of the characters to the audience, but of course other elements can do this as well.
Step-by-step explanation:
A drama is a play, a story that is written to be performed by actors on a stage in a film.
A dialogue is the character's spoken word; plots are sequences of events in a drama.
These elements of drama can reveal the traits and motivations of the characters to the audience.