Congratulations. I will be reaching almost 3000 images ones I upload all my photos from my recent trip to Rio de Janeiro and 2016 Olympic Games. It is taking a lot of time to describe all the Olympic events and athletes I was able to see and photograph, but it is also a learning experience. All the best in your journey as a photographer.
Thank you Pat, Ed and Emmanouil for these kind comments.
Emmanouil, as an answer to your question I can say that in Vietnam, as elsewhere in South East Asia, most of people like to have photographs. When I show my camera, a few people say no (with the hand, with the head or by turning around), the only thing to do is to respect their choice and go elsewhere. But as you can see with the third picture above, in North Vietnam mountains, women came very freely to our little "street studio" (and we gave them a print of each picture).