Friends, Family and similar relationships you are saying mostly "Du". Young people too. In the city, on the phone, school, at work and in the bank always say "Sie" for now. Hi! Thank you for your invitation and for your very kind messages. I'm sorry but it is very late here and I prefer to write you tomorrow. When is the best time to chat? See you later than. Although it was a beautiful region and a very lovely town it reminded me to much of home and I decided that I wanted to move on. We called Aerolinias Argentinas very early to book a flight for the same day.