A person that I know very well manages opinion in a different way. He always asks himself the question, is this person who has shared his 'opinion/comment' qualified enough to comment on that particular subject? In the heat of the moment thats a very difficult thing to do! He always smiles whether its a compliment or of the opposite kind. If he then thinks that the comment has come from a person worth his salt, he takes it on board, otherwise just chucks it just like the thousand other things you hear every day from the time you get out of bed to the time one gets back into bed.
Pushed for an example, he explained how a couple, one half does not know to drive and the other just learnt, yet they assumed that they were in a position to comment on his driving style and this is in a foreign land where he has been there longer than this couple! It was funny when he explained that he will have glorified them if had reacted to it :))
I have an example of my own, relating to cricket fans. Almost 90% of the Indian population, irrespective of age and sex have an opinion on how the Indian Cricket team should be selected, how the players should play but in the end, who does the newspapers pay for his/her opinion?