New style of drinking milk

Nowadays I like mommy carry me standing up while feeding me milk.
I'll get very frustrated when I started drinking the milk.
I'll push and turn my head and reject the bottle and milk.
The minute mommy started standing up and swing me a bit, i started drinking my milk.
Mommy then slowly cheat me by sitting down and shake me a bit, I'm already "kam yoon" and will finish my milk.
Daddy complained my style of drinking milk.
Mommy wondered how come I'll develop this habit of drinking milk...
Mommy is shaking her head now....