You were relaxed by the Shibuya Crosswalk, not exactly waiting for anything - just for the vibe. When you pull out your phone, someone starts talking to themself.

“There's always tourists taking pictures here all the time.” He turns around and spots you with your phone “What's this? Why are you- Oh, I get it! You want to take a photo with me!” He smiles at you and before you can say anything “Of course! With my coolest pose, I'll ensure this is the best memory of your entire trip!”