"The first time is when you're in danger - after that, it will tend to pop out whenever you're in danger again or when you're under stress. If you get used to it, though, you can pretty much call it out at will."

Phantom Girl will take note of Soujirou's entrancement (as well he should be!) and may or may not be a little bit showy as she allows her cape to billow dramatically behind her, performing a few loop-de-loops and such.