For the most part, the orange clothed boy with a similarly coloured leash binding him by the throat tried to keep quiet, when he got his feet firmly planted on floor outside of his cell's, any irritation he could have had from the sour taste in his mouth the woman that came to get him left with her words, or the feeling of the leash tightened around his skin, was quickly doused and overshadowed by the tinge of worry he felt creeping in with the scientist's warning against disobedience, he couldn't imagine mouthing off like a smartass or anything he could really say would soothe what seemed to be the woman's naturally foul mood, so keeping quiet seemed like the smarter option there and then. After a while, he figured he was right too, as the composed, dark haired brunette lead the way through the facility's white, almost canvas-like hallways, she didn't seem to find too much of a point in tugging his leash too much when he was keeping up and not being rowdy.
Fortunately, the dog-like pokémon keeping at his heel didn't look too aggressive, he wasn't sure whose it was, but it didn't seem like it was going to be bothering him either for now, thankfully, he tried his hand at petting the top of its head for a moment, before he had to keep focused on walking again.
Nevertheless, as he walked with her in silence, Leo gave his best shot at shifting around his neck so that his adam's apple wouldn't be too pressured, as the temperature of the air around him settled into a pleasant warm, up until the point where they passed another similar pair consisting of who he knew to be Chung's friend and a white lab coat, another worker here, he took a wild guess.
He blinked at the young boy's words, almost forgetting to keep walking after Stephenie, he raised his hand just enough to wave back slowly as a small nervous, yet amused smile found its way onto his face in the short time he had when he could actually see Kino, "Be seeing you then, little bro..." Needless to say, his smile disappeared quickly as he turned forwards again and continued walking, sighing internally, Hah... Well, he didn't look too bad. He peeked at the small of Stephenie's back quietly as his tail slowly started swaying again, Not in a good mood, huh.