I would think an economics degree combined with a high overall and science GPA would be very appealing to med schools. Do you have any idea how many biology majors apply to med school? This would be way to help you stand out in the crowd.
For MCAT verbal, this is probably the hardest score to bring up (IMHO). One thing I would recommend is to read, read, and read. Anything you can, it doesn't have to be science related, in fact it probably shouldn't. I got a 12 verbal score the first time I took the MCAT with no preparation for that part of the test, except a practice test. I spent all my time studying sciences (9's). The only thing I can attribute my high score in verbal to is the fact that I have always read a great deal, newspaper every day, magazines, books (fiction and nonfiction). I know its hard to read anything other than textbooks when taking classes, but try not to become an intellectual vegetable over your school breaks. Take advantage of the time and try to read things other than science or medicine related topics.
To improve your interview skills, particularly for applying to med school, talk to anyone who will listen about why you want to be a doctor. Yeah, your friends and family will get sick of hearing about it but you will be learning to articulate your motivation for pursuing this career path. Remember, that's what adcoms want to hear, that you've thought about why you would make a great doctor. When the interview comes you will be naturally prepared to answer their questions in this area. That's not necessarily all you need to do to prepare but it's a start. Good luck to you! I hope this helps.
