CLEAN : Travelers arrive from Mexico to the United States after borders reopen

The video contains a brief check-in message, likely serving as an introduction or greeting.

What does the phrase 'Checking in' imply in a conversation?

In what contexts might someone use the phrase 'Checking in'?

How can 'Checking in' be interpreted in a professional setting?

What feelings or emotions might be associated with 'Checking in'?

Can 'Checking in' have different meanings in personal relationships? Explain.