Most common mistake

Guess what? 99% people have already committed this mistake and the rest 1% is doing it right now....excited to know what that mistake is? Well its hard to explain but let me try....People try to look others in their own perspective and get an idea about them..well this is not a mistake is it really? I agree too... but, this leads to commit the mistake....most of them try to judge others with the knowledge which they have on others and try to give an opinion even when no one really cares to listen it ..in some cases it is no where close enough to judge a person...judging a person by his looks is the most foolish mistake people commit..u all know what i am talking about?? No exceptions here every one often do this.....i m not going to talk about it cause that really doesn't bother me..but what makes me sad is people who tries to deny to appreciate when one really deserves it and try to judge a person and damper ones creativity. When you are ready to criticize something which u don't like then, well be prepared to appreciate something which u like, Everyone has a opinion about everything but please never and ever tell them unless the other person badly needs it from you...That would be the best help you could do to for anyone.....This is a universal small 'n' minute mistake committed by everyone at least one in their lifetime which i m sure may have affected directly or indirectly to some other's progress in a major way, it will be too late by the time you realize what u've done.....I can't stop people who do this but only thing i could do is to talk about it and write about it.....