Press conference between President Tran Dai Quang and President President Obama

According to several press agencies in the country, at 10h35 on 23/05/2016, President Tran Dai Quang presided over the official welcome ceremony for the highest formal for senior leaders to the President's delegation Obama visited the Vietnamese official within 03 days (23 - 05.25.2016).
Following the celebrations of the two countries' national anthems, President Tran Dai Quang and President Barack Obama to honor The Vietnam People's Army. After talks with President Tran Dai Quang, witnessed the signing of several cooperation documents between the two sides, the US President will have meetings with the President of the National Assembly Nguyen Thi Kim Ngan at Uncle Ho's stilt house ; met Prime Minister Nguyen Xuan Phuc and courtesy General Secretary Nguyen Phu Trong during the afternoon and evening of 05/23/2016.
Here, matte information to those interested in the fact that many media outlets in the country, international for a "meeting marked a new milestone in the Vietnam - US" a very special details in welcome the US President at the Presidential Palace.
Accordingly, before US President B. Obama invited the team honors browse the Vietnam People's Army, according to the usual ritual, President Tran Dai Quang has invited the head gestures bowed to White House Vietnam's national flag. However, do not understand is not yet understood by the invitation of the President or for some other reason should the president has not done. And with a gesture reminded very cleverly and sensitively, the head of the State of Vietnam has made everything goes as planned initial international diplomatic etiquette!
This detail from 1'20 to 1'28 place in the video clip in question!
See more in the video below:
Welcome ceremony for US President Obama official visit to Vietnam (Source: VTV).
Please take the comments for those who care about tiny details, but this could not perform!