People who stop to coo over James tend to exclaim about how tiny he is (including an odd woman who was exclaiming how tiny he was compared to her baby who was a month older, when as far as I could tell they were exactly the same size), but I can never see it. Partly because at the 90th percentile for height, he isn't tiny for his age, but mostly because all I can see is how much bigger he is than the newborn that was so impossibly skinny we had to cross the tabs on his newborn diapers and 0-3 month pants fell right off him when I held him up.
That's one month and three months. It's kind of astonishing how quickly a baby can turn from scrawny, sleepy newborn to a fat little flirt. In James's case, while he's been smiling regularly since six weeks (his first was at four, but they were pretty rare at that point), it was around 10 weeks that he suddenly turned on the charm and got really interested in the fun game of social interaction. Now, he pulls away from nursing and gives me a big grin and a long coo, and I have to be careful not to catch his attention so he doesn't get distracted from eating by the sudden need for a flirting session. And I must say, he's very good at flirting. He gives any object of his affection gigantic grins and earnestly coos at us. He's starting to really enjoy being sung to, although I wonder how much of it is the music versus the fact that I'm paying attention to him. He's laughing more and more, first at the mobile above his changing table and then when Katherine figured out that he loves having his hands clapped together.
His neck is ticklish, although I wouldn't stick your finger in too far since he has a prosperous artisanal cheese-making business in the many folds. He's still a very spitty baby, but we only intermittently feel the need to give him Zantac for his reflux.
So far, his current interests are: Me, his father, his siblings, the cats, his hands and anything dangling above his head, from mobiles to dangling toys to the ceiling fan. He can hit dangling toys fairly reliably and can grasp anything near his hands, but has yet to reach out to grab anything successfully.
In the gross motor arena, he can hold his body stiff enough to "stand" and support himself with his legs when held upright. He can hold his head and upper chest off the ground while on his stomach. He can routinely roll onto his side, and a couple times has rolled onto his stomach while on his side, but that was on the bed which isn't a very even surface. Still, I think rolling over from back to front is speeding up on us. He can wiggle himself around to 180 degrees from where he started while playing on the floor. Aaah! Independent movement - the beginning of the end!
His nighttime sleep continues to amaze me - usually from around 8 or 9 pm to 5 am, then another couple hours after that. I've actually started putting him down in the bedroom to sleep on his own. His naps aren't as great - they tend to be short, even in the sling, and you certainly can't think about putting him down. I did get a swing recently, and with proper sleight of hand, he can be put down asleep in it and stay asleep for probably about as long as he would have slept.
I love three month olds. They've left behind the crankiness and unpredictability of newborns, but they're still small and cuddly. They're the epitome of sweet and adorable. And I love our three month old most of all.