Mwahahahaha~! Look at that face! Totally worth it!

(Grown adult woman here, by the way.)

Suppressing some wicked giggles, she kept grinning, playing pretend even though she knew he wouldn't believe her. "Oh, did I scare you? I was just practicing, I didn't even see you there. Oooops~." She followed it up with a head tilt, trying to get a glance at whatever notes he had. "Why, were you doing something terribly important?"