Hi, I've read your latest post for headcanons needed for a user with Supernatural Beauty, and I have to ask, what is it that you're having trouble with? If you've read the article of Supernatural Beauty I would think it would be obvious as to what would to your character in the situations that you've described. People who have Supernatural Beauty are supremely beautiful and use it to affect others. This power is divided into two separate but interlocking aspects:
The user is always, and under any circumstances, physically, personally and socially perfect, graceful and flawless, without anything that would make them look unattractive or distract from their presence. They are perfectly aware how to increase their appeal by apparel, action or choice of words, but even these are simply details to enhance their natural appeal. For example, someone with this ability rising straight from the bed after a hard night's partying and wearing the rattiest possible clothes would make even the best supermodel primped to perfection look homely in comparison.
Secondly, the user is able to affect other people, both by affecting their minds, emitting pheromones and generally being a perfect companion and/or object of admiration. At the lower level, the user could make a complete stranger treat them like their closest friend in only a few minutes and be perfectly willing to help them in any way they need. Someone with more power could make anyone treat them like someone who is privileged to do and get anything they wish and be admired and even loved for it. At the higher level user could make people fulfill their smallest suggestion, although not against their deepest principles. At the most powerful, they could simply eradicate free will, making everyone slavishly devoted to the user and willing to do anything to please them.
And the rest depends on your character's personality, in the situations you've described anything can possible depending on the level you set your character at. The one thing that will always, however, is that the people around her will always act favorable towards her.