"What can it do? Can it make other things float, or does it just float itself?"

"It can make whatever you want float."

"Do I have to tell it to float things, or can I want them floated and have it work? ...Float, float my notebook!"

"Until it knows you well enough to anticipate what you want, you need to ask," the bear explains as the small ballon floats over to the notebook, becoming invisible and insubstantial as it does, and causing it to float without detectable mechanism.

He pushes the notebook around, then tosses it, trying to get a feel for how floated things behave. And having fun because MAGIC. That too. "Can Float make other cards float? They'd be a lot easier to catch flailing around in midair."

They behave as if gravity wasn't quite affecting them, the notebook booping around like in null gee. Should he ask Float to move the notebook anywhere, though, it will.

"It can, but what do you mean catch flailing around?"

"Like, make the other cards float so they're still. Then find a net or something. Or possibly Windy'd be better at that, but I'm a bit nervous about her since she scattered the cards."

"When you capture them they'll go to you by themselves."

"I have get close and shout that thing to capture them. My idea was holding them still before I'd captured them, to give me a chance to."

"Oh. You can't use the Float to hold them still when they're unsealed, it's too weak for that."

"Windy's stronger, though?"

"Yes, it's one of the strongest cards and can often be used to contain other cards."

"Cool. Float, bring my notebook back then float me. Don't quite float me completely if you can manage that."

The notebook promptly (and slowly) floats over to Terry, and then the boy himself starts feeling quite weightless.

Oh, wow. Weightlessness is weird.

If he pushes off from the ground very slightly, does he come back down eventually, as intended?

Yep!

Whee! He hops around for a little while. But- weightlessness is actually pretty disorienting.

"Float, I'm gonna see about Windy now, return to card form. Cerberus... Any advice for less cooperative cards?"

It returns to card form and into his hand.

"Less cooperative cards?"

"The powerful ones with strong personalities that might not listen as well. Like Windy, she scattered the cards. Or was that just because I wasn't the cardcaptor yet?"

"Windy is actually pretty mild-tempered and agreeable. I don't know why she'd scatter the cards like that."

"Okay, but." Not what I asked. "If I capture a card that just doesn't like me, will they make a mess with anything I ask them to do, refuse to listen entirely, or what?"

"They can't refuse to listen what you order them to do, once you capture them, but it's better if you make them like you, both because of how much power they'll give you then and how easy it will be to use them. Also because it wouldn't be very nice to them otherwise."

"That reminds me, to what extent are the cards people? Flower didn't seem to care when I asked. They can think at least some, they want things, but you seem... Smarter than Flower was. Unless I just think that because they can't talk."

He blinks. "What do you mean, to what extent?"

"They're not humans, they're not the magic equivalent of robots, they don't seem all that smart, I'm trying to figure out where to put them on the 'deserves ethical treatment' scale. Presumably near the top but you know more about them than me."