at Mahale such as Cadmus, Michio, Jiddah and Totzy do so. Cf. look at water. See video. nod to water surface and mouth water Adult female, Totzy, nods to waters surface. She repeatedly takes water into mouth when face down and spits it out when face up. Rare water-contact play. See video. nod with body part in mouth Juvenile male, Xmas, sits and nods repeatedly with hand of infant playmate in mouth. Rare social play pattern. See video. nod with object in mouth Juvenile female, Jiddah, puts pebble from stream into mouth, retains it and nods repeatedly. Idiosyncratic solo play. See video. nod with play face Nod up and down repeatedly, with play face, while quadrupedally standing or approaching playmate. Solicitation of play. 8. See video. nut cracking