Depends on who you are...I know people who got great UAI's who did absolutely shit at it and people who didn't get quite as high who blitzed it. It depends on the person.
Multiple choice: Do a past paper that they'll provide you with just to get a feeling of how much time you have and what's expected of you.
Extended response(Don't think its for pharmacy): Write anything sounding smart...it worked for me...99.7 ranking in it