The girl had moves, that much was certain. He chuckled some as she complimented his throws and gave a small shrug. "Suppose I don't." He smiled though and once she seemed ready, he moved over to her and put her arm in the start up position. "This is the basic and easiest way to first learn how to throw, this position for your arm here." He showed her how to open the batarang then placed it in her hand.
With precise and easy to follow instructions, he moved her arm on how she was to throw the weapon properly a few times so she got use to the feel of it. Showing her exactly where to release, he stepped back and folded his arms.
"Alright Aurora. Go for it." Now to see how adept she was at this. Oh it would take time for her to be perfect at it like he and Dick were, but everyone had to start somewhere. He was also going to let her try on his cowl just for kicks. He didn't see the harm in it. Aurora might have less than ideal parents but that didn't mean she was the exact same as them.