"My precious Secret? What?" Vin's face was the epitome of confusion, but he couldn't hide the alertness from his eyes. Mir could see it clear as a day, how Vin's fists had just been clenched, how his back had straightened up, and how ready he was to sprint at Mir any second.
Mir waved the half-full vial in front of him like a bait, but Vin's gaze didn't follow it, sticking on Mir's face like a hawk. Mir nonchalantly tucked the vial under the underwear band and put his hands behind him, making himself look as unprepared as one could be against a sudden attack.