Military help Suffolk council distribute PPE supplies

The video contains a brief introductory remark, 'By the way.'

What do you think the phrase 'By the way' implies in a conversation?

In what contexts might someone use the phrase 'By the way'?

How does the phrase 'By the way' affect the flow of a conversation?

Can you provide an example of a situation where 'By the way' would be appropriately used?

What are some alternatives to the phrase 'By the way' that convey a similar meaning?