He'd lie contentedly, gurgling when the tummy was full.
Or rocking himself with an expression of bliss on his face.
Sleeping children too can be fascinating. Not having been exposed to the harsh surfaces the little feet are soft and pink.
Sometimes the postures they choose are funny. One of Skanda's favourite was the "frog" posture with his soft posterior in the air!
Once he learnt to turn over and crawl things were very different.