is that it? I've been saving them trying to find others to apply them to. ...would be great if we could apply them to our dates
Yeah unfortunately, you have to give them to those people or else you can't unlock certain aspects of the game. Baker girl gives you an ingredient for the sandwich. Curios unlocks the sandwich. Hyper girl, I don't think unlocks anything specific and I think, after a certain point, you can't give it to her since you can't access the Glizzard competitions if you get too big - they just stop happening.