Other mistake: After the song 'Love Will Find a Way' when Kovu and Kiara are peering into the water and Kovu says, "We are one," in the reflection the scar on Kovu's face is on the wrong eye. Nothing to do with it being reflected, it was on the eye nearest Kiara, and now it's on the other eye.
Other mistake: Near the start of 'Not One Of Us', animals are stomping their feet at Kovu. There is a gazelle towards the bottom right-hand-side that does this while raising both front legs and having their hind right leg not on a proper surface (looking closely, it's actually floating on nothing). No animal could do this without falling over.
Answer: Kiara is staring at the tip of Pride Rock and thinking of the that she will be a leader one day, due to the fact that shown in the first movie that this is where the new kings/queens roar to show that they are the new rulers. Simba notices her looking and chuckles at the irony of him having wanting to be leader so badly at her age and Kiara not wanting to be a leader at all.
diehardtwihard