In The Giver, what are some of the tidbits of happy memories The Giver gently gives to Jonas after the war?
You can find the answer to this question right at the start of Chapter 16. After the memory of the war, Jonas is totally scarred. He does not even want to go back and be the Reciever anymore. So The Giver gives him nicer memories.
He shows Jonas a birthday party to let him see what it feels like to be special -- to have everyone pay attention to you.
He shows Jonas museums with colorful things.
He has Jonas ride a horse across a field. This allows Jonas to understand about the love between people and animals.
He has him go campling and look at the stars. This shows Jonas about the joy of being alone.
So all of these memories are things that are totally foreign to their society, but they are nice things instead of horrible ones. They show us that the community has given up a lot of good things along with the bad.
In Chapter 15 of The Giver, Jonas enters the Annex room and finds The Giver in great pain. The old man asks Jonas to take some of the pain himself, and Jonas experiences the horror and suffering of war. Afterward, he does not want to go back, "but the choice was not his." However, The Giver decided to repay Jonas with pleasing memories. He experienced the joy of family at Christmas and the opening of presents. He felt the love of family, and Jonas particularly enjoyed the knowledge of grandparents--a foreign notion to him until this time.