Office hours - how it works?

Hello,
i started with the bootcamp last week on 13.02.

LFS207 is my first module (using the bootcamp study plan schedule)

When i join the office hours how exactly is this format working?

Do i have to prepare some questions before joining or is there a fixed topic the tutor is talking about?

i´m connecting from germany, so from my timezone it´s always at 17:00, i´m able to join short after finished my workday.

For the moment i don´t have any specific issues / problems - i´m now in chapter 13.

thank you.