A glare is a facial expression

Facial expression

A facial expression one or more motions or positions of the muscles in the skin. These movements convey the emotional state of the individual to observers. Facial expressions are a form of nonverbal communication. They are a primary means of conveying social information among humans, but also occur...

 showing disapproval, fierceness and/or hostility

Hostility

Hostility is a form of angry internal rejection or denial in psychology. It is a part of personal construct psychology, developed by George Kelly...

. Glaring, in some cultures is considered offensive. A glare may be induced by anger

Anger

Anger is an automatic response to ill treatment. It is the way a person indicates he or she will not tolerate certain types of behaviour. It is a feedback mechanism in which an unpleasant stimulus is met with an unpleasant response....

 or frustration

Frustration

This article concerns the field of psychology. The term frustration does, however, also concern physics. In this context, the term is treated in a different article, geometric frustration....

.

Visually, a glaring person tends to have their eyes fixed and heavily focused on a subject. This can sometimes be considered synonymous to staring

Staring

Staring is a prolonged gaze or fixed look. In staring, one object or person is the continual focus of visual interest, for an amount of time. Staring can be interpreted as being either hostile, or the result of intense concentration or affection. Staring behaviour can be considered a form of...

 but, in most of the cases, staring is caused due to curiosity and lasts only for a short duration, whereas glaring is caused due to contempt and lasts for a relatively longer duration.

Many people glare at a subject to express disapproval of the physical nature of the subject or ideas that may be expressed by the subject.

See also

• Frown
  Frown
  A frown is a facial expression in which the eyebrows are brought together, and the forehead is wrinkled, usually indicating displeasure, sadness or worry, or less often confusion or concentration....
  
  
• Inattention
  Attention
  Attention is the cognitive process of paying attention to one aspect of the environment while ignoring others. Attention is one of the most intensely studied topics within psychology and cognitive neuroscience....
  
  
• Smile
  Smile
  A smile is a facial expression formed by flexing the muscles near both ends of the mouth. The smile can also be found around the eyes . Among humans, it is an expression denoting pleasure, joy, happiness, or amusement, but can also be an involuntary expression of anxiety, in which case it is known...