Remember all those stupid trends you went along with in high school? There's a reason why you did it. Conformity is when we behave or think in certain ways because we feel like we should, because we want to "fit in" with a social group. No one told you to wear that cliche' Hard Rock Cafe t-shirt or use all that AquaNet in your hair, but you did it...and social psychology says that you are in the majority.