Staring is a prolonged gaze or fixed look. In staring, one subject or person is the continual focus of visual interest, for an amount of time. The meaning, purpose, and rudeness, of staring varies widely between cultures. Staring can be interpreted as being either hostile like disapproval of another's behavior, or the result of intense concentration, interest or affection. Staring behavior can be considered as a form of aggression like when it is an invasion of an individual's privacy in certain contexts, or as a nonverbal cue to convey feelings of attraction in a social setting. The resultant behavior or action defines whether it is aggressive in nature, passive or active expression of attraction, etc. However, to some extent staring often occurs accidentally, and often a person would be simply staring into a space for awareness, or could be lost in thought, stupefied, or be unable to see. As such, the meaning of a person's staring behavior depends upon the attributions made by the observer.