Long-term readers will know that I’m a fan of acronyms as valuable tools for encapsulating useful ideas. You can see some examples here, here and here of how I think they can be applied to help with the viva.
KISS is an odd one! Not a means to remember a cool tool or a structure to build around. Rather it’s a reminder that can help with viva prep and the viva, and of course to much of life:
Keep It Simple, Stupid
There’s a place for the complex and complicated in research, of course, but don’t jump to the most complex expression: simplify first. Don’t worry about the optimal way to mark up a thesis: start with a few small things to help yourself. Don’t focus on “what if” questions you may never have to face: find opportunities that will help you practise talk and answer questions.
You’re not stupid. Start simple.