ICJ hearing on India versus Pakistan case

The video tutorial begins with a greeting, 'It's nice to meet you,' followed by a response indicating agreement, 'They say yes.'

What does the phrase 'It's nice to meet you' imply in a conversation?

In what contexts would you use the phrase 'It's nice to meet you'?

Can you provide an example of a situation where 'It's nice to meet you' would be appropriate?

How might someone respond to the statement 'They say yes'?

What emotions or feelings might be conveyed by saying 'They say yes'?