No, I never smiled or laughed when Simba said that line. However, when I was young, I always wondered what meant Simba meant by that line. I never saw a trail he supposedly marked for Kiara.
That was until I viewed this thread:
viewtopic.php?f=32&t=7921
^The paws on the dirt trail off to the lower right is Simba's pawprints proving DGFone's point.
What a subtle, non-verbal story tactic the filmmakers used to tell you that Kiara is disobeying her father. How I missed that, I will never know. Perhaps my old television set cropped off the side of the screenshot above making the pawprint trail not visible on my TV...or perhaps I wasn't looking hard enough.