You should have a big list of personal achievements or positive experiences WITH examples that you can dish out. You should prepare a big list of possible STAR answers that you can relate to many different questions. Its perfectly ok to write down notes and bring them with you in a professional hard-case interview folder. Lastly, you should write down a *list* of questions you can ask them. Not one, not two, but a whole list, maybe 2 pages worth. They loved that I did this and wrote it down.