Baby joe's grandma visits him for his 15-month birthday. she gives him a big wet kiss on the cheek. when baby joe looks in the mirror he reaches up to his face where his grandma left a lipstick mark. baby joe:

Baby Joe "has developed a sense of self-awareness".

At some point in the vicinity of 15 and two years, youngsters make an expansive stride in self-awareness. In an investigation known as the "rouge test," moms wiped a touch of rouge on the noses of their kids and set them before a mirror. Before 15 months, kids take a gander at the reflection and see a red spot on the nose in the mirror, yet they don't understand that the red spot is not on anyone else’s nose but their own. At the point when youngsters are in the vicinity of 15 and two years, they start to understand that the reflection they see is their own, and they either point to the red nose or endeavor to wipe away the rouge.

answer; ancient times;