Debating is largely about developing arguments that are stronger than the arguments of the other side of the debate.
It’s not just the quality of the argument, it’s also the delivery, i.e. being able to present your argument in an understandable way.
There is a possibility to ask questions during a speech and the speeches themselves should always relate to the other speeches of the debate.
The language of debating is English, which for most of us is not the first language.
People will often have to debate against their own personal opinions.
The preparation time for the debate is very short, only 15 minutes, and one might be asked unexpected questions during the debate.