roll pull with mouth push push forward push head into ventral push leaf-pile push/ pull swing put face to put mouth into water rake rebuff play release infant to fall ride dangling and touch dry leaves roll rotate fruit rub dorsum to conspecific rub object to body scatter dry leaves scratch dry leaves shake branch up and down with feet shake face side to side shake face with object in mouth shake head shake object up and down shake off shake other shake rock up and down with feet sit on slap in invitation slap other slap self slide down boulder solicit play solicit play with object solicit play with object in mouth somersault somersault, backward somersault, backward with dry leaves somersault, forward somersault, side spar spit water