Unlike a Padawan learner, or even a pre-Padawan (whatever they were called), Claudia had no one she needed to impress in a "or else" situation. The absolute worst that could happen with Anakin was a random refusal to allow her to hold the lightsaber and, while Claudia wanted to hold a legitimate lightsaber for pure bragging rights (and epic factor), she wouldn't be utterly screwed out of her entire future if she didn't impress the Jedi Master. She was, still, approaching the entire matter with her normal sense of humor and attention span problems.
And Anakin calling her "Ms. Donovan" only worsened her desire to act out in some way.
"Shiny switch button." She pointed to it, "Click twice, on. Click twice, off."