Nikoban usually kept his eyes open. Maintaining long periods of looking around the village with his Byakugan let him see plenty of interesting things, and also assisted in training his eyes against strain. The eyes were like any other muscle after all, the more you trained them the stronger they would be. It was that reason that Nikoban had decided to scan the training grounds though, just as a casual look around as a part of his normal routine.
Something would catch his eyes though. She was a beautiful woman, for one, and so of course his eyes would be attracted to her, but additionally it was her use of chakra and genjutsu that caught his attention. The Mist Servant Technique, something he could see through with his eyes, was interesting to watch happen from the inside out. It caused him to approach her position.
“Hey babe, looking for a training partner?” Nikoban would call out to her as he finally reached the training ground, leaning against a tree as he watched her. His tail would be swaying behind him, and ears tilted in her direction. “You know, usually you’re supposed to do some stretching before you begin training. I could help you with that, if you’d like~” He winked over at Yui as he finished that, his flirtatious intentions clear.