what were the two things about which the other kids teased rufus?

Rufus had a Southern drawl accent. He would say things like "Hiya, y'all". Rufus and his brother Cody were poor. They did not have many clothes and the ones they had were old:

It didn't take people too long before they counted how many pairs of pants and shirts Rufus and Cody had. That was easy to do because Rufus only had two shirts and two pairs of pants and Cody only had three shirts and two pairs of pants.