Find Maggie worst mini game ever

I've had a bit of trouble tapping Maggie as well. Seems like I have to tap the house, not Maggie. Aim for the ground that the building is on - seems to work. There is a bit of a time lag with her animation when you do successfully tap her. Watch the timer and see that it has stopped running.
Practice is key!
I'm also seeing that she only goes to certain buildings. Never see her go to Springfield Heights or unusual or premium buildings. So you're most likely to finder in your residential areas.