[The fear she presents immediately in spite of the care he's taken to appear nonthreatening makes him feel rather guilty for approaching her at all, but the damage is done, so to speak, and he lifts his hands slightly in a vulnerable gesture.]

Hey, I'm not gonna hurt you.

[He keeps his distance although he doesn't quite believe her. She certainly doesn't seem okay, but maybe it isn't his business to butt into, regardless of intentions.]

's no trouble. Sorry for scaring you. Just... wanted to see if I could help. I'll leave you alone.