Most kids aware what is happening with the p1 interview. I told my kids that the teachers would talk to u n they'd choose the most polite kids to study in their schools. In the other words u have to answer the questions in full sentences. If u don't know any questions, u just try your best to guess the answer or ask the teacher politely to teach u.
And I'd bring my kids to eat something that they like after the interviews. N don't ask them so many questions after the interviews.