"This?" George asked, lifting the hoverboard. The woman she'd nearly bowled over was dressed in some kind of pale blue dress or robe. It looked vaguely asian, but that was all George could discern. She wondered if the woman was from the past. Or a</i> past, anyhow.
"It's a hoverboard," she said. "It's like a skateboard, but it has no wheels."
She let it drop. The board fell almost to the sidewalk, then stopped and bounced gently. George stepped onto it, and felt it flex slightly but it didn't sink any lower despite her weight.
"You stand on it, and ride it," she said. She demonstrated, pushing off with one foot and traveling a few yards before wheeling around and returning. "It's fun."