A first impression is the initial perception or judgment someone forms about another person when they first meet. This impression can be influenced by various factors, including appearance, body language, tone of voice, and even the context of the meeting. First impressions often occur within seconds and can be difficult to change later. Research shows that first impressions can significantly impact personal and professional relationships. For example, in job interviews, candidates often strive to make a positive first impression to increase their chances of being hired. Understanding the importance of first impressions can help individuals navigate social interactions more effectively.