Just because I am Honest doesn’t mean I truly am. It’s just that I didn’t get a chance to choose. 

People are not always as good as they seem to be. They are good deep within inside their hearts and yet all that goodness is covered by their life experiences just like how an iron is covered by rust when exposed to harsh weather.
So the best way for you, to be happy and judge a person, is to believe everyone is good, always be happy to help for the good of others and learn to forget and forgive. (Forget and forgive not for the good of others but for the peace of your own mind.)

Last but not the least.

To nail this mantra home always follow your heart and remember the words of Shakespeare

“Love all, trust few and wrong none.“