[Sorry, she's totally holding those fruit pastries in one hand grilling you about your magic, and that one blink reminds her that she's basically led him to food and then held him hostage. Sheepishly, she holds the plate out for him to pick one for himself.]

Here, try one of these.

[She pauses a beat, then continues.] If someone were interacting with your illusion, however, they'd have to be within earshot of you for you to be able to respond and not give the game away, right?