We are raising a very accomplished kid. Here is a quick post to photo document some of them.
Drooling. A lot and often. Preferably on his pappa's button shirts.
Thumb sucking. This started regularly on April 6th and does not seem to be a one-time deal like it had in the past.
Rotating. At 3.5 months he is not really mobil unless you count rotational motion. I'm not entirely sure how he does it, but he can achieve the amount of rotation seen above in the time it takes me to eat a bowl of oatmeal.