1/. 掃 BB 鼻, and talk to BB, ... then BB will keep drink...
2/. 掃 風 after milk milk..
3/. Dont mix the 人奶 and milker powder (easy to drink) ... BB will chose powder instead of 人奶 ( need more exec rise) .
BB is also a lazy guy....
if got problem, goto clinic,,, the nurse will teach u.
My wife did not how to do it during first 2 weeks.... after went to clinic... OK la...