Empty Covent Garden market during coronavirus lockdown

The transcript consists of a brief statement indicating that the speaker has been talking, suggesting a continuation or conclusion of a discussion or lecture.

What do you think the speaker means by 'I've been talking'?

How does the phrase 'it's just' affect the meaning of the statement?

In what context do you think this statement was made?

What emotions or feelings might the speaker be expressing?

How might this statement relate to the concept of effective communication?