Thank you so far!

What would be the easiest way for you to lose / gain face as an 'outsider' and for a native Chinese in comparison if I may ask?
I don't think I can answer that easily, in that there are so many different ways. But let me give some real-world examples from my own experience, to demonstrate not only how complicated -- and sometimes anti-intuitive -- it can be.
Example #1
At a banquet with various Chinese businessmen, we were all quite drunk (normal for such banquets), and someone mentioned a particular Chinese gov't official that I didn't like. I said something critical about him, essentially calling him an idiot. It was then revealed that he was the brother-in-law of one of the businessmen at the table (which was why someone else had mentioned him).
My comment caused a loss of face for that man, and effectively destroyed any chance of doing business with him. A simple apology or retraction wouldn't make a difference -- everyone there basically agreed with my opinion, but I was the one who caused the loss of face by stating it out loud.
The only way that I could remedy the situation was by
giving him more face than I'd caused him to lose. Which is what I did. I was already quite drunk, but I filled a large glass with Chinese bai jiu (about 60% alcohol, tastes vile), told him that I was doing this to demonstrate my respect to him, and then downed the whole glass.
It made me quite sick...I didn't even make it to the toilet before puking up the entire contents of my stomach. Yet it did the job, because the message I gave to him and to everyone else there -- in a
very visible and undeniable fashion -- was that his respect was so important to me that I'd damage my own health to demonstrate it. The result was that not only was our relationship not damaged, but it was actually strenghthened.
Example #2
I was working as a consultant for a Chinese-owned 5-star hotel in Qingdao in 1999. I was the only foreigner working there, everyone else from the Board of Directors on down was Chinese. I was hired to help them change to a more western style of management, in order to attract more foreign guests.
I did about a month of extensive research, both at our hotel, and our competitors. I wrote up a brilliant analysis of the problems the hotel faced, and the strategies we needed to adopt in order to deal with them. And I then did a half-day presentation to the Board of Directors.
The response at the meeting itself seemed quite enthusiastic, and I was given the green light to go ahead and begin implementing the changes that I'd suggested. However, I quickly discovered that every attempt I made to actually facilitate those changes was stonewalled...and eventually I figured out that it was the Board of Directors who were presenting all these barriers.
Now, the hotel was losing money; and from my western perspective, if I was on the Board of Directors of a hotel that was losing money, and I brought in someone who implemented changes that caused the hotel to become profitable, that would mean a great increase in my own face. However, that's not the way that the Chinese looked at it.
From their point of view, they were older than me, and had a longer history in hotels than me. Many of the plans and policies that I suggested directly contradicted plans and policies that they themselves had implemented in the past. To accept my ideas meant to implicitly admit that they had been wrong; and for me to be successful meant to implicitly admit that they did not know what they were doing, that they were incompetent leaders.
In other words, it meant that they lost face.
So, from their perspective,
making money and becoming profitable meant losing face; but continuing to lose money meant no loss of face, because by stone-walling me to ensure I wasn't successful, they could later claim A) that my plans failed, and it was my fault, and/or B) attribute the losses to other factors, such as bad economy.
I learned my lesson the second time around...I was hired to do almost the same job for a Chinese 4-star hotel. This time, I started by going to the President of the hotel, and explaining things to him. I was very careful not to say, "This is what we should do", and rather say, "Here are some possible ideas, what do you think?". And I was careful to leave a few key questions that had obvious answers..."And what do you think we should do about such-and-such?"
Then, when we had the meeting with the full Board of Directors, the President started the meeting by saying, "I met with John to discuss these matters, and
I have decided that we are going to do such-and-such". He then turned the meeting over to me to explain what we were going to do.
I presented
exactly the same ideas both times; the first time was a miserable failure, the second time was a sparkling success. The difference came down to understanding how face worked. In the second situation, everyone knew that the ideas were my ideas...but I gave the President the
appearance of being the one responsible for all of it, and thereby giving him face for all accomplishments.
There are numerous small ways you can cause someone to lose face (or lose face yourself)...sometimes things we wouldn't consider important at all. For example:
* When receiving a person's business card, failing to accept it with both hands, or to read it for at least 30 seconds before placing it in a special business card case (never just put it in your pocket)
* At a dinner, failing to drink exactly the same amount of alcohol as the person who toasts you (drinking more can make them lose face, unless you specifically state you are drinking more to demonstrate your respect for them; drinking less can make you lose face)
* At a dinner, not being aware of the proper seating, and sitting somewhere that you should not.
* Accepting praise for a job well done, without attempting to deny your accomplishment, or deflect the praise onto someone else.