Back to Q&A board 
1.The interviewers expect you to be extremely well structured. It's okay to take a minute or two, but having a structure is very important
2) There is no right (or wrong!) structure. All you need is a structure that works. For example if you want to find out what sells more coffee, you can either structure by what customers want, or what the sellers sell. It doesn't matter what approach you take, as long as there is an approach and it is MECE
3) There is typically a low bar on what you know about the specific industry. They might expect you to know a few very basic terms (e.g., profit, loss), but not complex business terms or industry specific knowledge (e.g., how a coffee bean gets made into coffee). There is although a slight difference in expectations by role
4) There is an expectation of creativity! You will be pushed to look for creative solutions - keep your mind open for more
5) There will be some graphical interpretations, so do practice interpreting data and drawing insights out of them with no math
6) There is a strong focus on number intuitiveness and quick math. Focus on your zeros, and don't change millions to billions. Have a good feel for numbers (is 1 million cups of coffee a lot? Is 1 $million enough to buy all the coffee you want?)
7) DO NOT FORGET the PEI. Most people focus too much on the case preparation and completely miss the PEI component. This can often be the most critical piece. Leverage your experience as much as possible, for all the levels.
8.And most importantly, stay calm. You have done enough practice, and be confident that you will ace it!