[She keeps herself from giggling at him so that there are some parts of this conversation where she's not laughing at him. She means it in the best of ways, seriously.]
Sure. I can do that. [A pause, and then suppressing the amused tone:] You'll probably do fine.
[Voice / Filter]
Sure. I can do that. [A pause, and then suppressing the amused tone:] You'll probably do fine.