You have to challenge anyone who gives you a funny look with a look of your own. Or don’t acknowledge them at all, because they’re not worth it! What will happen is that you will walk by and go on with your life feeling good that nobody’s got you down, and they’ll stand there a little dumbfounded. Maybe eventually they will grow up and realize how stupid it is to care about how other people look, and to expect people to care that they care, or maybe they’ll stay an asshole forever. You’ll probably never see them again. If you do see them again, because they’re a classmate or friend, their opinion might not be worth valuing. I get that it’s hard to just cut off communication with someone, and no one wants to do that over a single incident, but you just know now to be a little more critical of their opinions or views when they offer them. You don’t have to take what they say personally.

— Rookie » How to Not Care What Other People Think of You