When you meet someone for the first time, even without knowing, you try to figure out the characteristics of that person within a very short time. The little things that we do are sometimes enough to give an overall impression of who we are.
Why is this important? Because usually, the first impression is not easy to change. Often people get misjudged because they did something that gave a wrong idea about themselves. No one wants to give a wrong first impression, especially if they are in an interview or a business meeting or even on a first date.
The link below has 7 little things that may say a lot about our personalities.