What makes you who you are.

• Each of us is unique. – We look different, we have varying personalities, interests, and cultural and family backgrounds 2 What Makes You You? • We also share a lot in common. – We share a biological heritage, cut us, we bleed. – Shared brain architecture predisposes us to sense the world, develop language, and feel hunger through identical mechanisms. – We prefer sweet tastes to sour; we divide color spectrum into similar colors, we feel drawn to behaviors that produce and protect offspring. 3 What Makes You You? – We fear strangers at 8 months. – We prefer company of those with similar attitudes and attributes. – We know how to read on another's smiles and frowns. – We affiliate, conform, return favors, punish offenses, organize hierarchies of status, and grieve a child's death.