Jun turns in his seat a little more to actually face his neighbour and quickly shakes his head. "No! No, it's okay. You didn't bother me at all." He reaches up to tap his finger against the headphones now sitting down around his neck. "I wasn't even actually listening to anything. It's just an easy way to pick and choose who I actually wanna talk to, you know?" He's lying. He was definitely listening to music. Though he does pull the cord out of his pocket to show that it's not connected to anything.

...it's because he just pulled the jack out of his phone. He'd leaned against the arm of the seat a little awkwardly when he did it to pin the phone between it and himself. But it totally looks like he's not lying, right?