Kira has adopted a specific pattern that seems to be serving her well. Stay in the brush and in the shadows as much as she can and follow anyone who comes within her vicinity for as long as possible without being seen. Observe and try to determine if they're friend or foe. Sometimes she is unobserved, but since Kira's not exactly a ninja, sometimes she is noticed.

It's hard to tell with Vergil, but she's intrigued by the fact that he's carrying a similar weapon to hers. She moves as quietly as she can while still watching him carefully and keeping pace. If he goes past what she has decided is her boundaries, she'll leave him be.