There are people who consistently make others feel good about themselves. When you are in the presence of someone who has a "good eye" and a "good heart," you see yourself in a more positive light. Such a person treats you with respect and makes it easier for you to increase your own level of self-respect. Such a person says and does things that bring out the best in you.
Remember how you felt about yourself after encounters with such people. Let those experiences build your self-image. Don't just look at it as, "I felt really good about myself when I spoke to this person." Rather, view these encounters as life-enhancing experiences that permanently build your self-image. Even many years later, you can allow these encounters to raise your view of yourself.
(From Rabbi Zelig Pliskin's book: "Building Your Self- image and the Self-image of Others" (Artscroll) Chapter 35)