“And Hashem took Abraham outside and said to him, ‘Look up at the heavens and count the stars, if you can count them.’ And He said to him ‘so too will your descendants...’”
The Baal Shem Tob explains that the descendants of Abraham are like stars. We see them from a great distance and they appear to be mere tiny specks but in reality in the heaven they are gigantic.
So too in this world many people look very small. But in reality they have greatness. When you look at another person realize that he is like a star. He may seem small to you, he might not appear as having accomplished very much. Gain an awareness of the great potential of each person. View each person as an entire world, as an enormous being in the cosmos.
When you see people in this light you will behave toward them with great respect. When you show others this respect, they will gain greater respect of themselves. This can give a person the encouragement he needs to live up to his potential greatness.