The friendliness is welcome, at least. From her response, he immediately understands that he's not alone in this—that perhaps that is part of the cause for why she doesn't recognize him. There are heroes of all types willing to fight from all places.

"If they'd asked, it would make this process much easier." And while he wants to tell himself he'd say no, that perhaps he would take a much needed rest, he knows that isn't the case. Tired, yes, but willing to turn his back on someone in need? That's something he can't do easily.

"Anyway, I'm Harry, and—here, have a look." At that last part, he extends his hand to show her the bracelet. It's the stone indicating Heimdall.