Z silently laughed at his joke. She walked over to stand behind Lukas and rest her head on his shoulder since she short enough not to lean down. She didn't feel like sitting down. She would've answered Samuel's question if she could speak and he didn't read sign language. 
Lacy stuck out her forked tongue at the question. She didn't jump at the sound of the dish landing in the sink. "I had a 'busy' night last night and I was catching up on my sleep," she answered, smiling at Ashe. "Ace wanted first go anyways; for testing obviously." She dug into the yogurt cup and took a happy bite. She gave no other context as to how her night was 'busy', but the older people in the room would understand. She held no shame for it either.