Set your inhibitions aside. Completely nutty yet effective, 97 WAYS TO MAKE A BABY LAUGH, now with over 702,000 copies in print, is the perfect, charming gift book for parents who want to tickle their baby's funnybone, and their own. It's like a book of parlor tricks, except that the person who's being entertained is six months old and often as impassive as stone. Adult readers, especially those harried by the day-to-day details of caring for an infant, will rediscover their own sense of the absurd and delight in the suggestions and illustrations.<P> Like countless parents before him, Jack Moore was frustrated trying to amuse his baby son, Brick. Then he set aside his inhibitions and discovered the sheer family pleasure of playing "Live Jack-in-the-Box" (put Dad in a large cardboard box, then have the family sing the familiar tune-at "pop," Dad jumps out). "Three Card Monte for Babies" (using plastic cups and a lemon). The "One Torso, Two Heads" trick (Mom and Dad stand back to back and drape a sheet over their shoulders). "Mr. Ed Impression Contest." "The Human Carousel." "Who's Behind the Door?" And an updated "Stinky Feet Act." <P>