A lot can be learned from this photo. The uniforms and clothing of all are very similar, in fact duplicates of NATO and western uniforms. There is a very strong effort to appear to be cutting edge modern.
The presence of gloves is somewhat anachronistic, recalling scenes from Tora, Tora, Tora. When contrasted with the pics we see of the north Korean officers that wear the gaudy bemedaled uniforms that reflect the old China military, there is a striking difference.
It is common for journalists to heavily strike the themes of cyber war. Un mentioned and actually unknown are the day to day incursions into Chinese computer nets by our forces. Such activity is a closely guarded secret.
Looks like he dropped his right hand glove to shake hands.