skin yr in

secrets of the talking horse:

crew applied peanut butter to his gums to get him to move his lips.

a string was used. "It was initially done by putting a piece of nylon thread in his mouth.

the gelding learned to wag his lips whenever his hoof was touched.

 　                                      ／l、
                                     ﾞ（ﾟ､ ｡ ７
　                                       l、ﾞ ~ヽ
                                        　じしf_, )