The art of sharing

Shawn seemed to lost interest drinking his milk at one go. If I were to leave him alone on the high chair with the cup, he would pull out the straw and play and try to stuff it back into the cup. So nowadays I would let him drink his milk while he stand in his cot. Half way through, he would do this, "Bear, bear, chupchupchup". He smacks his tongue on his lips and make the slurp sound. Then he would had me the bear and shove it towards the cup. So I would make the bear "drink" the milk. Then sometimes he would, "Ami, chupchupchup". It's my turn to drink. Once done, he would continue to drink. And repeat the same routine over and over