usually people say "soul mates".
They say that to greet each other.
Each other.
say hello
It's common to say 'au revoir'.
They say, "Peace be with you."
Of course they are made for each other like you say a match made in heaven
When the Dutch greet each other, they will say "Hoe gaat het?' which means "how are you?" or they say "Hallo' very informal "dag"
cause it is polite and nice
Young people will just say Hi and older people Hello
they say hello to one another
People in Yemen say "marhabaan," which means hello.
Yes people can say hello,because there being nice and greeting you.