Lock focus on the reflection’s plane, not only the object it mimics. Manual control beats autofocus hunting in low contrast. Stop down enough to gather both surface grit and distant signage, then align edges carefully so geometry feels intentional rather than lucky happenstance.
Rotate a polarizer cautiously at blue hour; too much reduction erases magic. Aim for partial control that tames glass glare while preserving depth and color. After nightfall, consider removing it to keep exposure practical and prevent starburst softness under bright lamps.