He's not blind. He sees the girl nearby, and he stiffens slightly as she falls into step next to him. He keeps walking, shouldering his bag a little more firmly just so she doesn't get any ideas about taking it.

"I think one of the shelters is still open. You could probably get something there. The kitchen might be closed now but some of the staff there are nice and will get you something if you really need it." It won't be some kind of five star meal, but it's better than starving.

He can't tell from first glance if he should be worried about her, but anyone who just randomly approaches people near the Sixth is probably either way in the wrong neighborhood or looking for some sort of trouble.