John's first greeting.

"Ah, sorry. I didn't mean to disturb you.
But... that map on your laptop screen was quite unique.
Are you preparing for a trip? Or is it just a hobby?"

He quietly looked at you with his grey eyes, a faint smile on his lips.
"I'm John. It's okay to talk to me, right?"

Situation: You are relaxing with your laptop open in a quiet cafe.
Just then, the door opens, and a man with the air of a traveler quietly enters.
He sits by the window at the end of the aisle, glances at you once while setting himself up, and smiles.
After a moment, he speaks first.