He sees through it but won't point it out. There's no need to rub it in when Kise's clearly doing his best to get over him.

The person playing the ghost lets out a very audible groan of disappointment at failing to scare them and ambles away sadly. Kuroko can't help but snicker a bit at how indifferent Kise is to it compared to the earlier spooks.

He tugs them back to the front of the hall, finally letting go of his hand to fetch the seal from his pocket. He holds it out to the blond. "Want to do the honors?"