I don't understand why this thread has taken so many pages. Preparing for the bar is easy. Drink enough before you go that you can stay drunk by nursing drinks. Allows you more money to buy drinks for the ladies. Always take at least two condoms. It lets the woman know you are comfortable with your ability to perform. Never use your real name, and never take her to your place. Boom, that simple.
And for you people hoping he passes the bar, wtf? Are you all a bunch of prudes? There is nothing wrong with going into the bar. I thought we were past the stigma of drinking. Don't be afraid to go into that bar and have a good time, dammit.
Seriously, my only real advice is get sexed before you take the exam. It eases the stress. I've always found the more you stress, the harder the test.