3V0472.01 Doing “Headstands” (5/9/79)

Once she started toddling about, Peggy began “headstands,” i.e. with
her feet firmly planted wide apart, she brings her head and hands down
to the floor and peers between her legs. Peggy has done this several
times when I was nearby and, catching my eye, laughed gleefully as if
this were some sort of a joke (Perhaps in the sense that peek-a-boo is a
joke?). This is a common act among babies. What does it signify ?