I had a Romanian professor previously who was addicted to coffee and tea so much, she got rid of office hours. If you wanted to see her, you had to go with her to Starbucks'. It was adorable.
Apparently, in Romania, there's a big culture battle on tea versus coffee? Adults are bigger on tea, but coffee is taking over, with the help of Starbucks. And there's a lot of etiquette to them both, as to when you have what kind of tea/coffee and with what. They're big on black coffee with honey, just as if it were tea.
You have darker, stronger flavors in the morning, in the afternoon you have light flavors, and in the evening, you have decaffeinated "warm" flavors.
I drink both, and I tended to follow that etiquette already. I was just surprised at how people are practically surrounding their social lives around drinking. Well, drinking that doesn't make you lose your mind.