[Derek is looking at the map, mentally planning where he should go.]

So you were back here, not even planning to be productive. You've been back here the whole time and you haven't brought out your phone to call someone? I can't be that distracting to you am I? And since when did you call me "dude"? I didn't realized our... acquaintanceship progressed to that level.

[By now, Derek is smirking.]