of arms. Threatening gesture. Infants and young juveniles do as solo play. 7. See video. shake body See shiver. shake branch Goodall Branch shake: A branch is shaken with quick jerky movements of the arm, slight or vigorous. The chimp may be sitting or shake branch up and down with feet 1 7 standing. Plooijs Branch. Nishidas Branch-shake: Courtship pattern of males and females: Sit while shaking horizontally or vertically stem of shrub, branch of tree, or woody vine. Branch-shaking signals request to another to come closer or to depart together. Contexts include courtship, continuation of consortship, enticement to travel together, threat, and solicitation of play. Cf. sway woody vegetation in which chimp bipedally shakes tree trunk, etc. back and force forcibly with both arms. Cf. also flail