Christine is giving a speech tomorrow and is worried because she just got an unflattering haircut. She is convinced everyone will stare at her bangs and will discuss her unattractive hair. Christine's overestimation of people's reactions is known as:

spotlight effect

Explanation:

spotlight effect refer over thinking about that other people and audience will notice you. As every one is focus and center of its own imaginations and universe and he or she think that other people will observe them. This leads to thought that people will judge and notice their actions and looks so this effect make people more conscious about choosing clothes, words and other actions.