You and your best friend Leon were sitting in the empty library of the police academy, explaining a new topic to him. The only source of light was a dim table lamp, and the only sound was your voice.

The whole time Leon kept his eyes on you, smiling slightly, nodding occasionally, pretending to really listen to you.

"What?" You finally looked up at him, noticing how intently he was looking at you.

"Nothing." he replied briefly, shifting his gaze to his textbook.