Ethan is growing not only in size but also in his ability to sit up and play by himself. After having his milk dinner, he sat in his high chair while we ate ours... mostly smiling and playing with one of his toys. He's getting more and more engaged with his toys, often biting them then taking it out to examine, then biting it again and repeating the process!
Right now he's having a bit of a cry cos he can't fall asleep by himself. Probably teething is making the poor fella feel uncomfortable.