If asked, you couldn't repeat them. Gender influences perception. Certainly economic status alters perception. Think back to when your salary was one third or one half of your current income. Throw in how housing prices have escalated in the last twenty years, and you'll note another reason definitions change.
Physical characteristics play important roles.
In the sixth grade, I learned that I'm largely color blind. Maybe the editor I met for lunch really was more of a blonde than I thought. In his autobiography, Benjamin Franklin spoke to this point. Late in life, he adopted a new way of dealing with people. Franklin noticed radical improvement in communication efforts and how he related to others.