Body Language – Eyes

Looking Sideways

People who look to the sides a lot are nervous, lying, or distracted. However, if a person looks away from the speaker, it could display a level of comfort or indicate submissiveness. Looking askance generally means the person is distrustful or unconvinced.

Looking Downwards

If someone looks down at the floor a lot, they are probably shy or timid. People also tend to look down when they are upset, or trying to hide something emotional. People are often thinking and feeling unpleasant emotions when they are in the process of staring at the ground.
However, some cultures believe that looking at someone in the eyes is a sign of disrespect, or is only done with intimate friends or family, so this could explain why someone is avoiding eye contact with you.

Wide or Dilated Pupils

Dilated pupils mean that the person is interested. Keep in mind, however, that many substances cause pupils to dilate, including alcohol, cocaine, and LSD others. Don’t mistake having a few drinks for attraction.
If their eyes seem focused far away, that usually indicates that a person is in deep thought or not listening.

Twinkle in the Eyes

When you talk to a person about something that interests them a lot then you will notice a twinkle in their eyes.