WAVING — Peggy sat in my lap after dinner. We had indulged in some conversations with Peggy. Robby approached my chair and Peggy said /ae/, flapping both her arms as she has long done when excited. Robby repeated /ae/ and waved his right arm. Peggy smiled then /ae/ /ae/, waving one arm (her right) once for each sound. Robby imitated her precisely. Both continued this communication, varying the number of sounds and wavings, for over two minutes, with Peggy always directing.

RELEVANCE — (see comments in V0263.02)