In tabletop role-playing games, players have character sheets. These are a way of capturing information about the person you are pretending to be in the game. Are you a warrior or a wizard? What equipment do you have? Character sheets list statistics about the character, measures of how skilful someone is and perhaps key details about their past or their talents.
If all of the above sounds totally unfamiliar then from real life picture a CV or resume. These do something similar to a character sheet. They show what someone has achieved, a shorthand for showing ability and success, essential skills and qualifications. It’s not the whole story, but a helpful summary for reminding someone or sharing key details.
As you prepare for your viva, consider making a character sheet for yourself. List your accomplishments, summarise the skills and talents that make you amazing, and highlight the ways you have levelled up. Summarise what you can do now as a result of your PhD journey.
In a game, a character sheet might describe someone fictional and amazing. For the viva, create something which shows a real, amazing person: you.