How does Kenny show his affecton for his parents?

Kenny is a child with a kind soul. He usually does what he is told and is sensitive to the feelings of his parents. Kenny even notices things about his parent's relationship, 

I knew Dad was kind of disappointed by the way Momma had acted. She really hurt his feelings by walking off like that. Some of the time I think she forgot how sensitive Dad was. Even though he acted cheery with us I knew it wasn't the same for him now. I knew if Momma had stayed and hadn't gone off mumbling about money we would have been having a lot more fun. (chapter 8)

Kenny tries to show affection when his parents have troubles.