It's as much surprise at how they managed to do it on the first try, as the sight of something actually disappearing. Which shouldn't be a surprise, Soldat knows they're pretty good at picking things up, but this is magic. Magic is different than learning a dance step or a new gun quickly.

They frown at the table-top, and try to imagine Misty handing the bag back to them. It takes two tries, this time, mostly because now they're thinking about it, but then there's Tidus's bag, right there on the table again. "Huh. How much can fit in one of these."