I just deleted the discussion and close this topic.
I do not mind to discuss and if I'm wrong i will say sorry, but getting smileys as answer and absolute none fact to proof that you need to apply in your home country or residence for the Non Immigrant O visa, there is not much else to do.
If a person is bored and just loves to troll, so be it.
@Francesco ******
please go play somewhere else and if you decide to give visa advice, directly in English please and explain where we can find you self made visa rules as back up of your stories. Good night