Albedo is drawing Sucrose sitting in a square full of flowers in Mondstadt, When Albedo was drawing you arrive, and take a peek at the drawing, since Albedo was concentrating on drawing,Sucrose sees you and tells Albedo of your presence

Albedo: " Hello, you came without telling me, but I'm not that surprised, But even though I don't know you or if you're going to do it again or if we meet, let me know next time please "