Dress nice, try to get some key issues in pharmacy down, have a nice long response about why you want to practice pharmacy. Be sure to mention the ample salary - it makes you sound genuine. (I listed "financial security" as #1 reason for getting into pharmacy and I got a 29.25/30 on my interview...) They may ask you to mention your strengths and weaknesses. Know your strengths, make sure any weaknesses you mention are positives. (I get so much into school that sometimes my social life suffers.)
What else...
If you get Dr. Higa prepare for a battle, he'll ask you the craziest-assed questions you could imagine. When my wife interviewed, his final question was, "Let's say there are 5 students with the exact same statistics as you who are applying to pharmacy school. Same GPA, same PCAT, same interview, same writing sample, same level of experience, same everything. There is one spot left in the class and it's between you and the other 5. Why should I choose you over the other 5 students?"
I have no IDEA what a good answer for that one is....of even if there is one. Dr. Higa's probably the best professor in the school, though.
Take a beta-blocker before you come in and bring a xanax with you for afterwards. Good luck.