You can hope your examiners don’t spot them.
A vague paragraph. An unfortunate typo. An unfinished project. The method you can’t quite remember. The definition that you struggle to place. The ideas you’ve not finished developing.
The things you hope your examiners won’t notice, but they easily could. Hope is wonderful, but in this case hope isn’t enough.
Rather than hope your examiners won’t notice something, think about what you could do. Could you help yourself with more thought and more prep? Could you write a note in the margin or make some other useful annotation? Create a summary to explore or explain ideas? Ask a friend to ask you questions? Have a mock viva?
Hope can help you in the viva, but your actions help you more.
What will you do?