What is the thematic topic of the vignette "Laughter" "Nenny and I don't look like sisters ... not right away. Not the way you can tell with Rachel and Lucy who have the same fat popside lips like everybody else in their family. But me and Nenny, we are more alike than you would know. Our laughter for example. Not the shy ice cream bells' giggle of Rachel and Lucy's family, but all of a sudden and surprised like a pile of dishes breaking. And other things I can't explain. One day we were passing a house that looked, in my mind, like houses I had seen in Mexico. I don't know why. There was nothing about the house that looked exactly like the houses I remembered. I'm not even sure why I thought it, but it seemed to feel right. Look. at that house, I said, it looks like Mexico. Rachel and Lucy look at me like I'm crazy, but before Ihcy can let out a laugh, Nenny says: Yes, that's Mexico all right. That's what I was thinking exactly."