Katniss volunteers:

"Well, bravo!" gushes Effie Trinket. "That's the spirit of the Games!" She's pleased to finally have a district with a little action going on in it. "What's your name?"
I swallow hard. "Katniss Everdeen," I say.
"I bet my buttons that was your sister. Don't want her to steal all the glory, do we? Come on, everybody! Let's give a big round of applause to our newest tribute!" trills Effie Trinket.

"Don't want her to steal all the glory"?! FACEPALM. Don't you just want to slap some sense into the woman? That one phrase shows how utterly disconnected she is from the reality of the Games, from District 12, from the thoughts and lives of the people around her. Verbs like "gushes" and "trills" emphasise the portrayal of her asa scatter-brained, superficial person who totally doesn't get it, doesn't grasp the pathos of the situation.

More hair problems:

Effie Trinket is trying to get the ball rolling again. "What an exciting day!" she warbles as she attempts to straighten her wig, which has listed severely to the right. "But more excitement to come! It's time to choose our boy tribute!" Clearly hoping to contain her tenuous hair situation, she plants one hand on her head as she crosses to the ball that contains the boys' names and grabs the first slip she encounters.
[...] Effie Trinket is disgruntled about the state her wig was in. "Your mentor has a lot to learn about presentation. A lot about televised behavior."

Again, she's disconnected from the horrendous reality of what's happening, and prefers