object. Infants or juveniles do as solo play and during play walk. 8. See video. thrust, misdirected Thrust not at rump, but on other body parts, such as leg, head, or shoulder, etc. Function is similar to usual thrust. 7. See video. thump See rap. tick Ectoparasites of chimpanzees of genus Ixodus, etc. tickle Plooij TIC. Goodall: The chimp puts one or both hands/feet on the body of the partner, usually between the neck and shoulder or in the groin, and makes tickling movements with the fingers. See also poke and pat. Bonobos may touch, push lightly, hold, or grasp infant or juvenile in social play, which may be equivalent to chimpanzee tickling. See video. tickle self with object Whiten et al. Self-tickle: Tickle self using objects. Habitual