Today Liam made the leap from merely pulling up to cruising along the side of the couch. As usual, he made the leap while trying to pull keys off the laptop, which was sitting on the couch. His development of this particular skill has been interesting because unlike his propensity for danger in other areas (see: tongue in light socket) he’s fairly cautious about things in the vertical arena. He only stands (and now walks while standing) if he wants something and he very carefully sits himself down when he’s finished exploring. The only place that he pulls up for the sake of pulling up is on the bars of his crib. My guess is that the reason for this is that he’s learned that his mattress is fairly soft when compared with the floor and he doesn’t mind falling as much when he’s doing it in his bed. At any rate, he’s definitely progressing towards walking fairly quickly. I’m comforting myself with the notion that he’s being careful in his quest.