1963: CAPITAL PREVIEWS CHARADE Dignitaries of Washington's political and social life turn out for a benefit preview of UNIVERSAL'S CHARADE; starring Cary Grant and Audrey Hepburn. Mrs. John F. Kennedy is honorary chairman of the benefit committee for the Stay-in-School Fund. Mr. and Mrs. Robert Kennedy and the President's sister; Mrs. Sargent Shriver are among those attending the gala performance.