Mrs. Burstein, the sportswear and accessories buyer for the Nickels Concept Stores in New York, graduated from the Hun School and St. Lawrence University. She competes on the Grand Prix horse-show jumping circuit. Her father, Jesse Wachtel, is the president and chief executive officer of Intershoe Inc. of New York and Perugia, Italy. Her mother, Sylvia Fish Wachtel, is the director of information services for Wells, Rich, Greene Inc., an advertising agency in New York.