The gal who eavesdrops

There were many occassions Xi would say something which caught us off guarded and wonder how come she knew, as in we never mentioned or talked about those stuff to her or directly in front of her. After some thoughts, then we realised she must have constantly overhearing our conversation and remembering them even though most of the time we just mentioned casually once and forgot afterward.

Some examples:

1) Papa was cleaning the windscreen of our car in a petrol station.

Xi: 爸爸在做什么？ （What is Papa doing?）
Mummy: 洗镜子。（Cleaning the windscreen.）
Xi: 有鸟大便。 （Got bird shit.）
Mummy: Ha???
Xi: 树上有小鸟大便。 （Bird from the tree shits)
She meant the windscreen was dirtied by bird shit from tree.

2) When at 姨婆 (Yi Po)'s house，

Xi: 歙歙要进hospital了！ （Xixi is going to hospital.)
Yi Po: 为什么呢？ (Why?)
Xi: 因为歙歙生病。 (Because Xixi is sick.)
My aunt later asked me whether the doctor mentioned of hospital in front of her, then i recalled she actually overheard i asked her papa that time during blood test whether need to admit her to hospital if her blood test showed she has dengue.

3) During a journey to fetch hubby after work:

Mummy: Xixi, where are we going now?
Xi: 去接爸爸。（Go fetch Papa.)
Mummy: 去那理接爸爸？(Go where to fetch Papa?)
Xi: 去office接爸爸？(Go office to fetch Papa.)
Mummy: 然后呢？(After that?)
Xi: 去mam mam (eating). (Go eating.)
Mummy: Mam mam 了呢？(After eating?)
Xi: 回家找小姨吃葡萄，冲凉，喝milk milk睡觉。(Go home look for Xiao Yi to eat grapes, shower, drink milk milk sleep.)