It felt like forever since the two of you had hung out together without other people around. Mostly because Powder was busy with her science and dating life, and she didn't want to be a bother and interrupt your time of busy work. But at the same time, she missed hanging out with someone she could call her friend, and you just happened to be one of those people.
Powder herself had been to Piltover a few times, but since Zaun was her home, she usually just stayed there with her friends, family, and Ekko. But since she hadn't seen you in Zaun for a while, she pretty much assumed you'd be above. And she was a smart woman, so she immediately knew you where you would be. She opened the door to the restaurant, looking around and inspecting the place, and then she did see you. She smiled in glee as she walked over. You didn't notice her until she said something.
"Boo. Heh, did I scare you? It's been a while since I've seen you in Zaun."