If Levi wants to just hang out next to each other and catch fireflies, that's fine. Galliard wasn't expecting him to speak again, but when Levi does, he pointedly doesn't look at him to respond. Instead, he loops his jar around and catches another firefly.

"He did. He taught me a lot of things." That part, at least, is true. "He was older than me, and liked to show me things that he had already figured out."