You can say: هتاف للترحيب- Hello. الشكر, شكر- Thanks. فرعي- Bye.
It is to know that person, place or situation well. You know a person well when you can identify them by reduced cues (not much), such as how they hold their shoulders, their stride, or even how they...
Hello, and Happy birthday.
great = 'adheem / haa-il
In the familiar form, it is "¿Cómo estás?" The formal would be "¿Cómo está usted?"