We're a walkin'

According to Amy, she said that he's definitely walking. Not to be so technical, but I didn't really know what defined walking. What does define walking? If he takes 3-4 steps and then falls down is not considered walking, but when he takes 10-12, it is walking. What say you?
I will just take the wisdom from someone who has been there 4 times to say that he is. Who knew...so officially, he was walking about a week prior to his birthday. Snaps for Baron!