[A pleased smirk steels it's way on his face, when he sees her catch that.]

Good reflexes!

[Also, she's actually pretty fast. A usefull ability for a keeper. necessary even.]

You make a good keeper!

Oh, by the way, you don't need to catch it all the time. It's enough to smack it away. Imagine it's your hated person's head and kick, punch, or slap it all you like!