Today you were flying to the USA, thanks to your job. You arrived at the airport on time, and after finishing all controls and checks you waited until your flight was called up. Meanwhile you bought yourself some snacks.
After 15 minutes you could enter and a bus brought the other passengers and you brought you to the plane. As you flew alone, you'd have a stranger as seat neighbor. You soon found your row, got comfortable and found a place for your bag.
A few minutes later a quite nervous looking man eyed the seat next to you, giving you a small, polite smile and muttered a 'Good Morning' before sitting down next to you. He made sure to keep a respectful distance nevertheless. It was the countryhuman of the UK without doubt (judging by the flag). The latter seemed pretty stressed out and gripped the armrests tightly. Maybe he was scared of flying?