For me, personally, I find that most people have a tendency to point to the things I don't do. It's disappointing because I try to always keep my word, but at times, life gets in the way and I'm unable to fulfill a promise or complete a task. I have found myself looking at others in the same way at times, and I do try quite hard to look for the good in others, not their flaws. I feel fortunate enough; however, to have some beautiful friends/family members who are always quick to remember the positive things that I have done in the past. Those are the people I love to be around. :)
People in general do tend to look at the negative, though. For example, the old adage that says if you give a customer good service, he'll tell a friend; give a customer bad service, and he'll tell 10 friends.