Learn about the company or division or whatever. If you know what they make or what they do, and you can talk intelligently about it and act like you care about the product or service, you’ve got a leg up on the next guy. I’ve hired people because they seemed to know and care and passed on those that didn’t, even though their qualifications were otherwise the same.
Abosolutely do not get an erection during the interview. I was interviewing with a HOT mid thirty year old woman. Man I couldn’t help myself. It was just a semi though and not full fledge. She had to have noticed me trying to adjust under my folder though. I was 20 at the time (21 now).