Etiquette in class: no disturbance, speaking with other
students during lecture is not encouraged. In fact, it is
considered very rude. However, you can address the teaching
staff informally and ask questions if needed in the middle
of the lecture. When communicating with professors, lecturers
and teachers, the students are not required to use formal
language or titles. The teachers are usually helpful. Also
amanuenses and secretaries can help you solve practical
problems related to your studies.