Answer: If a student is staring during a lecture, there are a few possibilities to consider:
1. She may be visually impaired
2. She may be hearing impaired
3. She may have ADD or ADHD
4. She may be on the ASD spectrum
5. She may have other learning/cognitive disabilities
There are many issues (including above) in which young people don't know how to appropriately act in public situations. Someone who "stares" during a lecture, either doesn't know how to maintain an "interested" look without being "creepy," or has an attention issue and they are trying to focus.