What is it that tells her? That's a tough question, and Luna has to pause to consider it. "Well, I know that sponsorship is a trade of services." It's a clinical description, but it helps to look at things objectively right now. "Tributes help sponsors promote their brand or their image, and in return sponsors send Tributes help in the form of items in the Arena and money for day-to-day life. So it's a beneficial relationship for both parties to help each other, if all goes well."

That's an if, of course, and Luna finishes her reasoning hesitantly as if to ask a silent Right? at the end. With so little time her arrival and the latest Arena's start, the fact that she'd gotten anything from sponsors at all owed more to her mentor than anything of her own merit. She hasn't yet gotten the full sponsorship experience.