She has some serious muscles, as can be attested to by the nurse that took her blood for the bilirubin test. But the real sign is that she is lifting her head, and holding it up, 90 degrees, for a very long time. She was just now being rocked/bounced, and held her head up for a few minutes looking around. What is that about? Guess that vitamin regimen worked. From what I have read, 90degree lifting should only happen in the 3rd month.