didn't they learn?

My co-workers are usually so loud. This morning many people are back from long vacations and instead of usual boisterous commentary, there is a lot of whispering. Talking about others behind their backs about what bad things people did when they were gone, I assume. It makes me so paranoid. I worry that they talk about me. Didn't they learn that whispering isn't nice? Because I am so new, I don't get anyone coming into my cube and gossiping with me, but I am glad because I don't want to take any part of it. Hmph.