 Three-quarters of us bring a dish to pass. I think that's a Midwest thing, though. Eighty percent of us smile at strangers. More than half of us tip well. In fact, 60% of us. When it comes to helping out our friends and neighbors, whether they're next door or not, more than half of us do that. Eighty percent of us give directions. Oh, what about obeying the speed limit? No, we don't.