Eye contact is a form of connection between two people. People are uncomfortable when they feel there is too much, or too little connection for the situation. What they feel is too much or too little, is dependent on a number of factors.
On the opposite end of the spectrum, healthy emotions aren't always the reasons for lack of eye contact. Other reasons can include:
- trying to recall something (you sometimes see people staring off into space)
- cultural habits (some cultures don't look authority figures in the eye)
- the person experiences life primarily through their emotions (you will often find these people looking down at particular moments, not because they are uncomfortable, but because they are looking inside themselves, to ascertain how they feel about something)