splash water stamp stamp in invitation stamp other stamp quadrupedal stamp water stand with head down, bottom up step on stir water struggle free suspend and shake up and down swing swing above swing and kick swing forward and upward tag tease throw throw at throw at animate object throw dry leaves throw sand throw stone or rock thrust thrust in vacuum thrust, misdirected tickle tickle self with object tilt head toy trample travel and play trifle with walk in sloth position walk quadrupedal on backs of hands wrestle wrestle bipedal wrestle with fingers 1-. Inter-group relationships attack concertedly battle copulate between group emigrate follow specific female immigrate inter-group behavior intrude kill adult male kill infant patrol respond to neighboring unit group stalk territory transfer unit group visit