Mom sings "Deck the Halls" with baby girl in front of the Christmas tree. Baby sings "La la la la la" part.
Baby boy babbles, then mom says "I love you" and it sounds like baby says the same thing back to her
Baby girl's hair stands straight up and sways back and forth when she swings in a baby swing.
cat plays with toy with mom: cat leaps in the air to catch toy and knocks down baby (limited recovery)