In the episode, Alana is invited to a party by Pearl, who is said to be very popular.
Her appearance was based on a number of inspirational sources, who was 16 at the time in addition to hosting the making of the special on Disney Channel, and model-comedian , who provided live-action references for the animators during the development of the film.
Even when we see Ariel's face light up as she looks at her new feet, we don't see much of anything else.
The seal is very happy to be found.
Most notably, she was impulsive in signing Ursula's contract.