Comment Listen in (Score 5, Informative) 205
Among the advantages of owning a minivan is that it becomes easy to carry your own children, plus a few of their friends. You get to know those friends, and listen to your kids' conversations with them. Often, the kids sort of forget you are there and converse "normally". You gain a window into their lives at school you otherwise would never have enjoyed.
Sneaky trick: if you turn on the radio with the fader balanced toward the rear seats, the kids will speak louder without even realizing it.