Fighting, dead, injured after 17 inc police chief killed

The video starts with a greeting and then poses a question for discussion.

What do you think the greeting 'Hello.' signifies in a conversation?

In what contexts might the greeting 'Hello.' be used?

Can you provide an example of a situation where 'Hello.' and 'What about?' might be used together?

How does the phrase 'What about?' contribute to the flow of dialogue?

What emotions or intentions might be conveyed by the phrase 'What about?'?