As you know, your chances for advancement in the company will be determined by your behavior tonight.  I will give you a few hints on how to act.

The first thing to remember is, whatever you do, don't just be yourself.  Do anything to draw attention to yourself so you will be remembered down the road.  I will leave the limits of your boldness to your own discretion, but remember, there are many more people too timid to take what's available than there are who go TOO FAR.  Tonight you have the chance to go too far and be recognized for it.

Try to impress your hosts with your knowledge of arcane subjects.  Choosing little known subjects reduces your risk of being discovered as a know-nothing dolt.  If you are discovered, acting belligerent and questioning the sexual preferences of your accuser will help defuse the situation.

Always try to talk louder and longer than everybody else and interrupt any competing guests.  This discourages others from interrupting you and detracting from you being the center of attention.

When the waiter comes to take the order you should announce your choice first and then say "they will all have the same" of the other guests.  This will give the impression that you are a natural leader who is concerned about other people and not afraid to take charge.

Order three extra meals to take home for your family.  This unselfish dedication to your family will be appreciated by host and family alike.

These are some general ideas that will advance your cause, whatever that may be.

I will read up on the local customs and a give more detailed description on proper etiquette, like when to smash wine glasses and who's to smash.  Should you ever punch a waiter or overturn a table?  If your host brings his wife and she refuses to dance with you, should you ignore her refusal and dance with her anyway or dance with the host instead?  When to stick straws up your nose.  Is it okay to taste other guest's food without asking?  If you don't like it should you put it back?  When to use silverware.  When is it proper to be under the table?  Is it ever proper to be under the table with the host's wife?  Are auto mechanic coveralls the best attire or should you risk soiling your good dress?

How to get ahead in business without really selling your soul.