Loki narrowed his brows and cocked his head to the side to say, “really?” As if he didn't know she needed paint to paint things. As if he were dim or something. She wasn't talking to Thor, she was talking to Loki. He who considered himself relatively intelligent, perhaps moreso than the others in Asgard. Not particularly wise... wisdom was different from intelligence, but he thought of himself as a smart fellow.
Then she was grinning. Obviously, she was proud that she had made a jibe at his simple question and gave it a simple answer. She was teasing him again. What was up with that? Was that particularly smart of her? It was a good thing he had a sense of humor, though it was hard to be amused when it felt sort of like she was patronizing him.
Then she turned and bent over and he couldn't resist the urge to tip his head to take a good peek at her bottom. He may have been trying to be gentlemanly by letting her dress with his back turned... but he wasn't dead. Pleased, he tried not to smile and looked back upward the second she started to turn toward him. And then she was holding out something for him to see.
Loki took the pendant in hand and looked it with a genuine amazement. It was, plainly put, beautifully done. Very intricate. It was nothing like anything Loki had particularly seen before. At least not done on that small a scale. Before he could think through what he was about to say, his mouth opened and he started speaking. “How do you get your strokes so small, steady and even?” Then he paused, blinked and realized that it didn't quite come out in the most... polite way possible. Actually, taken out of context, it sounded rather dirty.
“That...” he said looking up at her, “that was worded poorly.”