They hold up their fore, middle, and ring finger together on one with their left hand.
No one claps when asked, instead they use something (-----^) that means thanks and admiration usually used at funerals for goodbyes.
The people of District 12 are very saddened to find out that one of their well known and loved citizen is going to be put into the games. They give Katniss a sign of respect by placing (I think) two fingers on their lips and extend their hand outward.
They all held 3 fingers to their mouth then extended their arm still holding the 3 fingers
By wearing a Mockingjay pin.
A mockingjay.
Rue told her how to use the nightvision glasses. Katniss thought they were sunglasses, but they messed up her vision. Rue said they had them in District 11 so they could see in the late work hours, and showed Katniss how to work them.
It showed Katniss growing up a bit
In the book, Mr. Mellark showed kindness to Katniss by bringing her some bakery-quality cookies and promised that he would make sure that Katniss's younger sister Prim, wouldn't starve.
She was hunting in the woods when she saw on of his hunting traps, when she went to take a closer look at it he showed up, then they talked for a while&he showed her how to make traps.
You can find the answer to this on page 24 in book one of the hunger games as well as here: In the book it says, "It means thanks, it means admiration, it means good-bye to someone you love." Thanks for reading, addieh99
A mockingjay.
Rue told her how to use the nightvision glasses. Katniss thought they were sunglasses, but they messed up her vision. Rue said they had them in District 11 so they could see in the late work hours, and showed Katniss how to work them.
Because they think she might not live so they showed admiration and thanks but a warm goodbye. -Vic'5toria(the 5 is silent)
It showed Katniss growing up a bit
Katniss showed loyalty to Peeta when she wouldn't leave him in the cave. He was injured and would be a burden to her, but she was loyal to him and helped him recover.
Katniss and Peeta confronted Haymitch because he wasn't mentoring them. He was just sitting and drinking. They confronted him telling him that he needed to mentor him, and that they were fighters. This tells you that Haymitch didn't really mentor his tributes, as District 12 wasn't trained before The Hunger Games. They were too poor. But when Katniss and Peeta showed him that they were fighters and weren't willing to give up, he was willing to train them half sober.
Cinna dies because he showed rebellion towards the Capitol. He was designing dresses for Katniss that showed her off to be the Mockinjay, the symbol of the Rebels. For his rebellion, he was beaten in front of Katniss and then executed.
In the book, Mr. Mellark showed kindness to Katniss by bringing her some bakery-quality cookies and promised that he would make sure that Katniss's younger sister Prim, wouldn't starve.
She was hunting in the woods when she saw on of his hunting traps, when she went to take a closer look at it he showed up, then they talked for a while&he showed her how to make traps.
They did not show Katniss decorating her body with flowers because it showed signs of rebellion
Yes, the purchase of Liberty Bonds was the main way in which the US financed World War 1 adn it showed patriotism by it's citizens.