-
Sleeps an average of 15 hours per day
-
Able to track objects by sight and sound
-
Begins to smile, later laughs out loud
-
Loves bright and contrasting colors
-
Able to lift head; later able to support head on own
-
Rolls over on own
-
Primary source of nutrition is breast milk or formula
-
Reaches and touches things
-
Makes babbling or gurgling sounds
