UK: The Prince and Princess of Wales visit Roca, a non-profit organisation for at-risk young people in the city of Chels

The video begins with a greeting and thanks to the audience, followed by a brief mention of organization. It concludes with a call to action, encouraging viewers to watch and a personal note about needing to drop something off.

How would you respond to a simple 'thank you'?

What does the phrase 'we need to drop my back now' imply?