I encountered two american CO first was the one taking the biometrics it was 25th of Nov (american time) so i greeted her happy thanksgiving and it was so nice of her to smile and greet me back then the second was the final interview at first i thought he was strict well technically he was, he wasn't smiling either that adds to my nervousness LOL but I did well, answered everything he asked and showed him my proof of relationship (scrapbook) then he said MY VISA APPROVED!