好奇这个“她”怎么称呼自己？是叫自己的名字呢还是用”我”？

得看“她”多大。

对于智力正常的小孩，At around 18 months, children will refer to themselves by name. A few months later, they'll begin to understand and use 'I' to refer to themselves. This is when they start to realise they're a separate person with their own ideas.