Polls open as Taiwanese vote in the presidential elections

What do you think the speaker means by saying 'I mean'?

In what context do you think the phrase 'I mean' is typically used?

How does the phrase 'I mean' affect the tone of a conversation?

Can you provide an example of a situation where someone might say 'I mean'?

What are some alternatives to the phrase 'I mean' that convey a similar meaning?