Exhaustion aside, the sound of another pair of footfalls keeping pace beside him as opposed to shooting on past is enough to coax up his gaze, eyes opening and catching sight of the veritable athlete striding along without a care in the world.

Armin lets off a slightly more emphatic huff at the sight. Maybe there's a little pang of envy in the glance, but it's far from venomous. Unlike the words the other offers, albeit in a much more potentially literal sense. Well, that's one excuse to take a break.

"Where?"

It isn't a yell, but with as hard as he's breathing, the noise comes out as harsh as it is suddenly rife with alarm. Digging in his heels and coming to a halt like a horse balking at a jump, his eyes snap down to the track, wide and searching for any sort of winding line stretched across his path.