As the thornless rose poked him, Reinhard was abruptly brought back into reality from whatever he had been thinking about before.
Looking towards it, he noticed it wasn't held by a hand, and instead growing on what could best be described as a vine. Unusual as this is, Reinhard followed it with his eyes, quickly tracing it back to Pablo, whom he then stared at for a few seconds, trying to figure out what the gesture was supposed to mean.

Sure, Reinhard was aware of the gesture of handing one's love a single rose, but he also knew about the gesture of giving one's friends a bouquet of flower when the occasion warrants it, for example on said friend's birthday. The matter was complicated even more by the fact, that he wasn't handed any flowers, the flower had been grown to him, which could give it a meaning he wasn't even aware of, considering humans usually can't grow flowers that quickly.

Reinhard's confused stare ended when he noticed the proximity of the teacher, pointing Pablo at them, and then pointing at the place of his arm where most people keep their watch, trying to signal something along the lines of "not now, not enough time. after class". He could only hope it would be understood, as he returned to his default sitting posture.