I didn't have any prompts for this one and so I used an idea that came to me when I woke up this morning!
Just stand back for a minute. No, don't take me literally, I mean up, not back. That's it, right up, up, and hold it there. Make sure your body is absolutely straight, perfectly horizontal, as if you're being suspended by invisible wires from those ceiling tiles and that each is calculated to precisely the right length. In fact, imagine that you are invisible too. Now, relax, let the strings take your weight. And look down.
Can you hear the noise again now? Good. Let it seep into your pores. Practice letting each voice you hear get louder, and louder until it is as sharp as a pin. Listen to the words, to the pitch. Is it a child? An adult? Male or female? Look for its partner but be quick before the moment passes. Now allow them to fade back into the crowd. Write it down in your head with your fast pen. Don't worry about anyone else being able to read it. Just get it down. Rewind the tape in your head. Not too much, just back again to that moment. Which walkway were they on? Were they arriving or departing? Think about where they were coming from. Perhaps it was somewhere tropical or cultural. Look back at their appearance. Tattoos, expensive luggage, sombreros and make up all give away so much. Now look again to the things underneath that you can't see. What are they trying to cover up? Perhaps there is something about the way they are walking. Pay attention to the way they hold their shoulders, whether they are tense or relaxed as this will tell you much about their journey. Or maybe it will tell you about their whole life. Are they pleased to be back or to be escaping?
Now jump back to the present again. Look at your people and where they are now. Yes, they are now your people because you've created them. Start the whole process again only this time they will obviously be more familiar to you. Make a comparison of how they have changed from the first moment when their voices pierced the bubble you naively surrounded yourself with when you set out for your holiday this morning. Think about the journey they have taken between those moments in relation to the one they probably think that they have taken. Marvel at the possibility that they are completely unaware of the stranger who is both their creator and their stalker. Imagine their reaction when they notice you observing them, their outrage or pleasure when your thoughts tumble out onto paper, the details you have to give to the police officer who is demanding to know all these things about who you are and what you're doing hanging about in an airport entrance and imagine what the final statement will look like when it's written down at the station.
But surely they'll understand. Surely those nice policemen will understand that a writer is never off duty, that if he is then he should re-evaluate his career choice, because he does not have the right mental attitude to be a writer.