IT COSTS a quarter to see and hear a two-minute sound/slide show, The Story of Pineapple in Hawaii, which is one of the two audio-visual attractions in the Hawaiian Pavilion at the Fair.

But you can enjoy some lush color and sound travel films of the area free of charge in a nearby "stand-up" theater.

Even if you're not "pineapple minded" that show has a cute trick in its use of listening cups along the railing (see illustration [above] for details).