[ glances down at his game console, paused and resting on his lap ]

You don't have to worry about interrupting... I'm not doing anything important.

[ a game is something he can pause and start whenever he wants, with no time restriction— if he's willing to stay up late for it, and he often is. ]

I'm usually free during lunch, and after school... If I'm not here, or in 3-A, I've probably already gone home.