Think of meaningful questions to express that you're curious and have thought about the company.
Eat an energising meal beforehand - but no smelly meals!
Read up on the employer, hiring manager, and job role.
Suggestions for those looking for employment:
"Upon reviewing suitable professions/occupations, some opportunities will come to the fore as suitable and satisfying. It's conceivable that no one profession has the options to make use of each of your abilities and hold a way of operation closely harmonious with something like yours."