What Do You Say-- ?: A Child's Guide to Manners

""Never wave your knife and fork about. You may hurt someone,'' this whimsical ``child's guide to manners'' advises. The point is backed up by an illustration of a young eater inadvertently poking her dining companion with a knife. This book has a good-humored attitude toward manners, and the fact that it demonstrates the practical reasons for some conventions makes it more persuasive than others of the genre. One edict should have been Americanized, since it contains the Britishisms ``lorry'' and ``zebra crossing.'' Snell's cartoony pictures are zesty and childlike; parents might consider putting this on a shelf just underneath Sesyle Joslin and Maurice Sendak's What Do You Say, Dear? and What Do You Do, Dear? (No ages given)