I think Poppy is one of those people who has a vivid imagination and then goes on to think what she was thinking about actually happened.
So she is in the Bolt (real) and sees two tattooed fit guys (maybe only one is tattooed and they're not that fit) and she starts thinking about what if they made eye contact and called her beautiful (totally imagined) but when she thinks back to it. in her mind it's all true. If you accuse her of making it all up, she will swear down that it's all true because in her mind, it is.
There is a name for this and Donald Trump suffered it too, so she's in good company.