Lydia knew what a laser was! People used them to entertain cats in humorous videos!

She fully assumed a lightsaber was a sort of cat toy now, yes, which raised a number of questions, but she didn't ask any of them. Instead she said, "Probably best not to pull that out in the middle of the restaurant, yes."

She wondered if Rey would enjoy one of those cat cafes...did Baltimore have one of those? Research was called for.