time, e.g. when close companion sleeps for long bout, sits, grooms, fishes for ants or termites, etc. Includes yawn, flip lip, drop bark bits, scratch self, groom object or substrate, etc. 3. See video. kiss 109 kiss Goodall divides Kiss into two forms: pout-kiss and open-mouth kiss. Both types rarely seen in bonobos, but absent in adult bonobos at Wamba. See video. kiss with open mouth Plooij OMK. Goodall Open mouth kiss: The open mouth is pressed to body or mouth of another. If two chimps open-mouth kiss each other on the face one often presses his mouth over the others upper lip and nose, the other has his mouth over the lower lip and chin of the first Open-mouth kiss often occurs in reunion, reconciliation, or social