Characterization is the representation of people or other beings in literature. When the author states explicitly what the character is like, either through the narrator or another character, this is an example of a direct characterization. Indirect characterization happens when we find out about a character through his behaviour or thoughts.
Answers:
Direct characterization. The author is explicitly telling us that Toby has a reputation as someone who is clever and quick.
No characterization. There is no information provided about Julia’s character.
Indirect characterization. The author is telling us about Angela’s character (the fact that she is excited about the surprise party) by details about her behaviour (the glancing at the clock and the twinkle in her eye), without explicitly stating it.