Here is an adult minding its own business when a chick comes charging into the picture and does a "sky-point": standard polite greeting among Yellow-eyed penguins which can either mean "hello, how are you?" (which is probably the case here as it is between a chick and an adult) or "giddaye, gorgeous, howzit going??" (which is usually between adults when they encounter each other, and is flirting of course).
The adult looks a little alarmed at the enthusiasm of the chick - but maybe he fears one of his own chicks has followed him there and wants more food. They always WANT MORE FOOD NOW!!