You could find that the real decision makers -- the bosses -- might well appear at the banquet just to see what you are like.

It's like driving your car without any brakes,

It is very fierce indeed, so only try a little bit (especially) if you have to go around a large banquet toasting everybody.

Banqueting forms an integral part of doing business.

To show your appreciation of generosity you should not finish all the food. If you finish, the host might misinterpret that they have not provided enough.