Indirect characterization is shown by a protagonist 's actions and words throughout the text.
This can be determined by looks...
For example: The little girl left the game with a slight frown and slumped shoulders.
It can be inferred that the little girl lost the game or her favorite team lost, depending on previous events.
It can also be determined by speech..
For example: "Hey, we can have lots of fun at camp this summer! I love being outdoors!
Based on this, you can infer that the character is upbeat and happy.
Also if it helps I'll tell you how you can tell if it's indirect vs direct.
1. The writer will not directly comment on the character whereas he/she will if it's direct.
2. The personality of the character is revealed through the character's thoughts, actions, speech, and reactions to other characters.
3. The writer will show us what the character is like.
I hope this helped :)