Development of a child under one year - the second month

What can a child in 2 months:
The kid can smile in response to your smile;
Look to see off the subject (in front of him);
Make sounds (babbling);
To raise its head at 45 °, when lying on his stomach;
Hold your head up in a sitting position, although uncertain;
Turns head to sound, the looks of his eyes;
Baby escorts adult view, if an adult moves from a cot, and welcomed him;
Searching for the sound source, if an adult approaches and talks;
Demonstrates a "complex revival" in response to the communication;
Can calm down sucking;
Calms down when he is on hands or when he hears or sees a man;
The fingers are almost always compressed in the fist, and when some finger 'accidentally' bends and gets into the mouth, then the baby intently it sucks.