This can be a difficult question to answer in an interview, especially when you are in the process of trying to make a good first impression on the interviewer! Preparing your thoughts on this sort of question in advance will help keep you from feeling stumped. You can ask friends, colleagues, or a local barista what they think your first impression is like to give you some external feedback. You may also respond to this question by sharing what you anticipate people's perceptions are as well as what impression you strive to give.