Think of a personally significant trip that you have taken. Think of a specific local person that you interacted with while you were there. It could be a grocer or a beggar or a tour guide or even a one night stand. Describe them in any way you like, physically, emotionally, how they made you feel. Give them a back story if you like, real or made up.
This is an exercise that can be great for creating a fictional character based on a real person or it can be a helpful way to begin writing about an overwhelming travel experience that seems too big to begin recording. Might even make a great hub!