Focus on what you can control. This talk will not focus on the technical or "whiteboarding" part of the interview - that's what Firehose Project is great at, along with your mentor. Before switching to the tech industry, I was a recruiting manager for 3 years and have done over 500 interviews with candidates during that time period.
What I will cover:
1) get your non-verbals to work for you
2) shift the control of the interview with your questions
3) 3 pieces of advice - 500+ interviews' worth of exp from the other side of the table boiled down for you