Did you ever think why is this person so negative or why am I being negative? Why am I seeing everyone's faults or why does that person always point out my faults? Do you desire to see the good in others instead of their faults? Good questions!
The answer is quite simple: If I am seeing others faults it is because I am focused on my own faults, however if I am focused on the good that God is doing in me, I will see the good in others.
The remedy for this is, as the Lord would say, "Think of me."
Very simple, stay focused on God and what He is doing in you, in your life and in those around you. Live in the moments of Gods grace and good will arise in your eyes of yourself and of others.