Thor had used this sort of voice on Loki before, and it had been laughable when he had been on the side of it. It was just so damn earnest that it almost reduced him to giggles. The sarcastic smirk on the Hellgod's face showed that she seemed to agree with his own assessments, but that didn't mean that he couldn't be annoyed that she hadn't been cowed by it. It would have made things here much simpler.
Loki was also annoyed that this creature was powerful. She didn't seem to wield magic of any kind, but she took a beating like he had known Thor to do in the past. This one would not go down easy. Damn.
Loki didn't personally care if the creature knew their names. He saw no reason so share his own right away, but if Thor wanted to announce himself as of the House of Odin, he was free to do so. (Although dragging a similar statement from Loki was never going to happen. He may be learning to slowly tolerate being around Thor, but some bridges were never going to be rebuilt.
"I don't think that she's impressed, Thor," Loki remarked. "Maybe she's so thick headed that she only understands what you smash into that blond brain of hers."