Notice the gratitude of the QEII

This took place at Windsor Castle, the private and most beloved of all her homes in England of QE II:

http://www.theguardian.com/uk-news/video/2014/jun/17/queen-chinese-premier-li-keqiang-windsor-castle-video

In terms of today's currency, what the Sassoon family gave to the Windsors of the their share of the opium profits from China could have been in the billions of pounds.

Is it any wonder QE II, has such a beneficent smile upon her visitor - the current PM of China.

And note it did not take place in Buckingham Palace. There is a big difference between receiving a guest in our Toronto house versus at our home in Oakville.

Question:
What would be her smile like if it was the President of China?