Happy Birthday! (6 months)

Yesterday we celebrated a fairly big milestone, 1/2 a year!! Sam has two teeth, is able to sit on his own, and is starting to hold a bottle--although his aim is a little off and he ends up spilling milk down his nose. Plus, he's a pro at blowing bubbles.
Today we got the official measurements from the doc:
Height: 29 1/8 inch
Weight: 19lbs 12oz
Head: 45 7/8 cm
(Everyone looks at Sam, then looks at Mom, and scratches their head.)