Smiles, everyone, smiles

I captured a few more Luke smiles. He is smiling a lot these days, which is great. Here he's also waving to his adoring fans:

A more mischievous-looking smile, or possibly a little laugh:

He is also learning to suck his thumb, as he steadfastly refuses to take a binky, spitting it back at me every time I offer it:

He's starting to get pretty good at it, and is producing some serious sucking noises, but that little thumb is just too small to give him much satisfaction yet, so he's having to try to use his whole fist. I realize one day I will rue the day he learned to suck his thumb, but right now I will be so happy if he can learn to soothe himself (as I could use a break from all the soothing!).