Corrected entry: When hiding in the gas station, the T-800 mentions to Sara and John that it has "detailed files on the human anatomy". However, when they are escaping the hospital, and John is crying, he asks "what's wrong with your eyes?" Though he may not understand the emotional motives for crying, he should know about it in a biological sense, and thus know that it is happening.
Thisbe
31st Aug 2006
Correction: Tears serve non-emotion purpose as well. They provide lubrication and rinse out debris. Seeing tears and unaware of the emotional motives, T-800 assumes something must be in John's eyes and asks a reasonable question.
Thisbe