Thanksgiving Rules - Percy Isaac Gifford's Official Thanksgiving Decree: I officially command you to eat EVERYTHING you see! Percy knows just what to do to get the most out of this delicious holiday. And so will you if you follow his ten simple rules. From "the early bird gets the turkey" to "life is sweeter when you eat sweets," his rules will help you eat your way through the big meal. But is there more to Thanksgiving than stuffed turkey and sweet potatoes with marshmallows? See how Percy discovers the true recipe for a perfect Thanksgiving holiday.