I never said to be a know it all always butting in saying how wrong you are all the time. You have to be smooth with it. And only when a small quarrel is acceptable. But if you know how to pull it off, it's a perfect way to prove your intellect.
Just do what I do, constantly disprove what people say.
She wants her friends to stop making fun of her, not have everyone ostracize her.
Once you've accepted your flaws, no one can use them against you -