Crawling

OK, I think I can now say N is crawling. For the last few weeks, he'd take one or two tentative steps and then sit back down. Today, he made it down the hallway. He still would stop after a few steps, but then he's get back up on his hands and knees and move a bit more. He tried the stairs too. Managed to get up the first step, but then wasn't sure what to do after that.