Well, little Ivan is almost 3 weeks old. He focuses on faces if they are close enough for him to see, recognizes voices and, when put on his stomach, holds up his head at 45 degrees for 30 seconds. Of course, of all faces and voices, Ivan prefers that of his Mom (much to her delight). And he is just mesmerized by his Dad's singing! :-)
By the way, Ivan has finally figured out that his Bugaboo stroller is uber-chic and now enjoys smooth rides!