[It's amusing the way Goku reacts, as if he's managed to retain that child-like wonder despite seeming older than all his siblings. Yoimiya's like that too, and honestly it's very endearing to him. So it makes him laugh, a short quiet chuckle as he picks up some more fabric that he's got in front of him.]

It's a lot easier than you think.

[He pats the seat next to him, inviting Goku to sit next to him.]

If you think you can part with you food for a moment, I bet you'd be able to get it to float too.