Perception is both innate and learned.
Within the face, eyes of newborns are drawn to contrast boundaries, such as the hairline, eyebrows and mouth. For this reason, a breast feeding baby tends to look at its mother's face. This makes a lot of sense. By about 5 years visual acuity is at adult level, but perceptual acuity is far short of adult level. Prior to this time, a baby does not differentiate between self and non-self.