He was aware of his oscilant behavior while trying to focus on straightening his vertebra in the student chair. This was a tough class and trying to concentrate and catch every nuance of the instructor was difficult. His tendency to doze after an all-nighter was evident as his head kept trying to nod. Straightening himself in the desk, trying to reform his body into an assumed position of attention, he feared the next question would be asked of him.
Uncanny as it may seem, he was thoroughly aware of this strand of Biometrics. He enjoyed studying the topic and even though the instructor barrel eyed his nodding pate, he was capable of answering any query put to him–as long as he could stay awake and not collapse from exhaustion.