Prim you can't enter the Tesserae and mom you can't shut yourself out again at all.
She has a brave face when in harsh situation like in this example when she was making her mom not cry after telling her to never shut Prim out and told her not to cry so Prim wouldn't.
Katniss is very high tempered when she is being exploited like when Peeta confessed that he loved her and she was thinking on how he made her weak to everyone else.
Katniss is selfless when she volunteers for her sister putting all aside to save Prim her younger sister that entered there name once and the odds were never in her favor
Katniss shows courage when she risks everything to get the attention of the game-makers so she shot the roasted pig (Turkey) . She thought she was going to be killed or turned to an Avox but she did it anyway.
Katniss shows a strong morale when she takes over hunting too help her family get food so they didn't starve to death because her father died in an explosion mining for food and money.
When Katniss met gale she opened herself up for improvement and that is something a lot of hero's never do and it is a big thing that they need is improvment