Investigation to establish whether Azahari died in police raid

The video begins with a simple greeting, 'Hello hello.'

What is the significance of the phrase 'Hello hello' in communication?

How does repetition in greetings affect the tone of a conversation?

In what contexts might someone use 'Hello hello' instead of a standard greeting?

What emotions or reactions might the phrase 'Hello hello' evoke in a listener?

Can you think of any cultural variations of greetings similar to 'Hello hello'?