My DD is 6 months and it's just more wonderful than I ever could have imagined, she makes me laugh all day long at the moment. Some of my favourite bits:
That moment when she finally gives in to sleep and her head rolls off to side. So utterly innocent, peaceful and precious.
Kissing her candy floss soft hair, particularly fresh out the bath. I spend my day kissing her hair (and little face).
The arm flapping, bouncing up and day and squealing when she gets excited, and how she gets excited about just about anything - but most of all when my DH walks in from work.
The giggles. The most wonderful noise in the world.
Her fascination with the tiny details of our world - a cushion needs five minutes of very careful, close up exploration. When she spots something and her whole body leans right in to explore it.
Oh, and when those super loud hand dryers or another new loud noise scares her, the bottom lip goes and the little cry starts - but a big hug from Mummy, a bit of a bounce and everything is ok. So gorgeous.
It really does get more and more fun every single week.