First impressions
The old saying, "First impressions are everything" rings true in many cases. Sadly, many interviewers will decide to not hire a candidate within the first 30 seconds to 3 minutes, based on a poor first impression; so don't hurt your chances by arriving at an interview and making a poor first impression. In my mind, these interviewers who focus too much on first impressions are terrible at their job, but this is the reality of the hiring process.
Eye contact
Making steady eye contact is essential at interviews, as it tells the interviewer(s) that you are trustworthy, engaged, interested, enthusiastic, and aren't hiding something (to this last point, I think about when young children are hiding the fact that they broke a window with their football). Your eye contact is part of your communications; in other words, you can speak with your eyes. Eyes wide open can indicate excitement and happiness, while slightly closed eyes can indicate disapproval and even anger. Do you see...