CLEAN : FILE: Mali rebels to initial peace deal on Thursday (2)

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 situations 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 how 'By the way' can change the topic of discussion?

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