Gideon could see the difference immediately, but he waited until he saw her reaction before the grin spread over his face. She wasn't a particularly vocal customer, but he thought he could tell that she liked it — which was ultimately the more important part, not the visual display the wand made or didn't.
"Well, I think we've found it," he said, moving towards the counter. "How does it feel?"
"Well, I think we've found it," he said, moving towards the counter. "How does it feel?"