First, make sure you do it within 24 hours of a major, life-changing event.
Second, make sure you wait for the perfect time of day. 3:00 in the afternoon on a day where the "my new bed!" excitement precluded any actual sleeping sounds perfect.
Entice her with a ride in an elevated, one-eyed convertible Bug. If the horn still beeps, consider it a bonus.
Spray her down.
No really, she likes it. Do it some more.
If you're lucky she'll get the "gone to my happy place" look.
But be quick, the car can't hold a young girl's interest forever, ya know!
Uh, well... I mean... normally it can't.
When leaving, exit the building and jump into your car quickly lest people think you are harming her in ways other than taking her out of the Bug.