I propose a toast!

In China, alcohol often flows freely during business parties, and toasting your superiors properly can be serious business.

Curiosity #4:
If you want to impress your boss, make sure your glass is lower than his when toasting. Here's how it works: So we all know what it means to save face. In China, it's just as important to give face too. Lowering your glass shows that you recognize your position in the organizational hierarchy and that you respect your superiors. Westerners naturally tend to raise their glasses higher, unknowingly giving the Chinese an impression of arrogance. In more casual situations, individuals may compete to have the lowest glass until the glasses touch the table or sometimes even the floor.

Cheers!